We Can’t Agree on Inequality—Here’s Why

Centuries of argument have left a stubborn question unresolved: how much economic inequality is acceptable? Unlike inequalities rooted in race, gender, or disability—which typically attract broad moral condemnation—economic inequality in income, consumption, and wealth remains fiercely contested. That contestation does not result from a flaw in the debate; it is the debate’s defining feature.

This article briefly surveys the range of positions held by ordinary citizens and experts about economic inequality and explains why a single, definitive answer is so elusive. The issue persists because it is far from trivial. Income gaps can reward innovation and fuel growth, yet they can also cement structural disadvantages that stifle opportunity regardless of individual effort. And that tension is only the beginning.

As with many economic phenomena, economic inequality (henceforth simply “inequality”) arises from a mix of incentives, opportunities, institutions, luck, and personal choices. Some inequality is the natural byproduct of a dynamic market economy. Some reflects structural barriers, discrimination, or inherited disadvantage. And some inequality stems from people wanting different things and making different trade-offs.

Consider two otherwise identical individuals who are equally able to make free choices: one opts for a 40-hour workweek, while the other chooses to work 25 hours in order to spend more time with family. Standard measures of inequality—such as Gini coefficients or interquintile ratios—will record an income gap between these individuals. But should this disparity be regarded as a social problem, or is it simply the outcome of differing preferences?

Or consider entrepreneurship. Jeff Bezos and Sara Blakely became billionaires because millions of consumers voluntarily purchased the products and services they offered. Even accepting that most of their wealth reflects the scale of the value they created, it nonetheless contributes to a widening of measured inequality. The question, then, is whether and under what conditions such inequality should be considered excessive.

Within the realm of firms, another tension appears: most agree that a CEO’s compensation should exceed that of an entry-level employee. Consensus collapses, however, when we ask by how much. Should they earn 350 times more, as current data indicates? We observe similar dynamics in sports and entertainment. Star athletes earn vastly more than a schoolteacher, not necessarily because they work harder, but because global demand for elite performance is enormous and highly scalable. Inequality increases—yet so does the enjoyment of millions of fans. The question, again, is whether and under what conditions such inequality should be considered excessive.

Against this backdrop, public concern about inequality remains real and nuanced. Surveys consistently show that a majority of Americans believe inequality is “too high,” though fewer than half consider it a top priority. What qualifies as “too high,” moreover, varies sharply by political affiliation, income level, and personal experience. Even among those who view inequality as excessive, most agree that some degree of inequality is justified. The difficulty here lies in determining how much qualifies as “some.” On that point, there is little consensus.

The divergence is not uniquely American. In a spring 2024 survey across 36 countries, Pew Research Center found a global median of 54 percent of adults describe economic inequality as a “very big problem” in their country. An additional 30 percent consider it only a “moderately big problem,” while 16 percent view it as “not a problem at all.” Political ideology and income level shape these perceptions at the individual level, and these factors widen disagreement over inequality’s tolerability. At a broader, societal level, long‑standing cultural attitudes—from national myths of meritocracy to historical views on social solidarity—define what a population ultimately perceives as “fair.”

Even at the introspective level, dilemmas emerge. Many people feel uneasy about large economic disparities, yet they also want their own effort, talent, and risk‑taking to be rewarded. Rewarding merit, however, inevitably produces differences in outcomes. Because individuals vary in ability, ambition, and choices, accepting the rewards of one’s own effort also means accepting that others will end up with more—or less.

International institutions also reflect this ambiguity. Goal 10 of the UN’s Sustainable Development Goals calls for “reducing” inequality, not eliminating it. By contrast, Goal 1—“No Poverty”—is absolute. The difference is telling: there is broad consensus that poverty is unacceptable, but no consensus on how much inequality is too much.

Even leading economists who argue for reducing inequality avoid specifying a precise target.

Anthony Atkinson wrote “I am not seeking to eliminate all differences in economic outcomes. I am not aiming for total equality. Indeed, certain differences in economic rewards may be quite justifiable. Rather, the goal is to reduce inequality below its current level, in the belief that the present level of inequality is excessive.”

Joseph Stiglitz advocates for greater equality than currently exists in the United States, arguing: “We (or at least most of us) believe in equality, not complete equality, but far more than that characterized by today’s economy.”

What is considered “excessive” or “not complete equality,” however, remains undefined. The absence of a concrete threshold is not an oversight that can be easily resolved. Instead, it reflects the inherent difficulty of the question.

Disagreement extends even to philosophical debates, where consensus might be expected to emerge more readily, since these thinkers often work at a high level of abstraction and are insulated from immediate policy trade-offs. But conclusions drawn from philosophical analyses also suggest that this lack of consensus is likely to persist.

A brief survey of several philosophical positions can help illustrate that there is no universally accepted moral benchmark for distinguishing between acceptable and unacceptable inequality. Adding further examples only strengthens this point.

For example,∙ sufficientarians argue that everyone should have “enough.” But what “enough” actually entails is rarely defined. In developed countries, “enough” might mean the ability to afford basic nutrition, or the ability to participate fully in modern life—which might require broadband, transportation, and higher education. Moreover, human heterogeneity complicates any simple threshold: what is enough for me may differ from what is enough for you. In fact, this challenge extends to many philosophical standpoints.

Limitarians argue that having “too much” is morally objectionable and that justice may require upper limits on wealth. But again, what is “too much”? Limitarians struggle to provide non arbitrary thresholds that distinguish legitimate reward from excessive accumulation. Consider again Jeff Bezos and Sara Blakely: their wealth reflects both genuine innovation and stark inequality. The challenge is that the same accumulation functions as deserved achievement and as a driver of measured inequality—making it difficult to judge where reward ends and excess begins.

Utilitarianism regards inequality as morally permissible insofar as it contributes to the maximization of aggregate utility. In its act form, the theory evaluates distributions exclusively by their consequences for total welfare, rather than by any independent standard of fairness. A well-known objection—the “utility monster” thought experiment—highlights a striking implication of this commitment: if one individual were capable of deriving vastly greater utility from resources than others, then maximizing total utility could justify allocating a disproportionate share to that person. Although such cases are deliberately extreme, they reveal a structural feature of act utilitarianism—namely, that it can, in principle, license significant inequalities whenever these increase overall utility, even at the expense of fairness or proportionality. Rule utilitarianism attempts to mitigate this concern by shifting the focus from individual acts to systems of rules whose general acceptance maximizes welfare, thereby constraining outcomes that would otherwise undermine social trust and stability. However, this strategy introduces its own difficulties. It may require adherence to rules even in cases where violating them would produce better outcomes, giving rise to the familiar charge of “rule worship.” More fundamentally, rule utilitarianism appears unstable: if rules are followed rigidly, it risks failing to maximize utility in particular cases; yet if exceptions are permitted whenever they would increase utility, it collapses into act utilitarianism and thereby forfeits its distinctiveness.

Rawlsians are concerned with maximizing the position of the least advantaged as measured by their share of social primary goods—rights, liberties, opportunities, income, and wealth. But translating this principle into policy addressing inequality is far from straightforward. Identifying the least advantaged group, quantifying primary goods, and determining whether a given inequality truly improves the long-run prospects of the least advantaged all pose formidable empirical and institutional challenges.

Desert-based and meritocratic theories seek to justify inequality in different ways, and both are subject to critiques linked to their respective rationales. Desertism emphasizes that individuals should be rewarded for outcomes for which they can be held responsible, but in practice, establishing accountability is often extremely difficult—results depend on luck, social context, and other factors beyond personal control. Meritocracy, by contrast, values talent, natural ability, or recognized achievement, even when much of it arises from chance—making it vulnerable to criticism for rewarding unearned advantages. This contrast is illustrated by beauty pageants: a winner may merit the title for her exceptional appearance, yet since that beauty is largely inherited rather than earned, she may not truly deserve the accolade under a responsibility-sensitive conception of justice.

Luck Egalitarians distinguish between “brute luck” (circumstances beyond one’s control) and “option luck” (voluntary choices with uncertain outcomes). Within this framework, opinions on whether society should mitigate the consequences of option luck remain deeply divided. By contrast, there is broad agreement on the need to compensate for brute luck—although determining what counts as brute luck can be difficult in practice (consider, for example, family background).

Strict egalitarians want near-equal outcomes. This position is exemplified by Peter Singer when he states that “The principle of the equality of human beings is not a description of an alleged actual equality among humans: it is a prescription of how we should treat human beings.” The normative criterion of strict egalitarianism holds that a uniform distribution of resources is the most authentic realization of its moral ideal. However, this position faces widespread criticism for its potential to undermine the incentives that drive economic vitality. Imposing a near-equality of outcomes ex post distorts ex ante behavior: when the link between effort and reward is severed, individuals may default to complacency. By removing the penalties for low productivity, such a system risks creating a dependency trap where the motivation to innovate is diminished. Furthermore, recipients of extensive state assistance—by virtue of the system’s design—may become passive citizens, prone to social isolation and a sense of detachment from the nation’s political and socioeconomic life.

Each of these frameworks captures some compelling insights, and is subject to valid criticisms. Although these theories can offer principled guidance, none of this guidance translates neatly into a precise, uncontested policy benchmark for the acceptable level of inequality. The theories then diverge not only when it comes to why inequality might be acceptable, but about how much inequality. Without shared moral foundations, a stable and principled consensus on the “right” level remains elusive.

This leaves us in a peculiar position. We measure inequality with statistical precision, debate its causes, and design interventions to expand mobility and opportunity. Yet we lack any benchmark for when inequality becomes problematic. And, strikingly, we may never have one.

That absence matters. Without normative anchors, debates risk circularity: inequality is “too much” because it exceeds some unspecified standard. But what standard? Until we can answer, rhetoric outruns reason.

Ultimately, the central challenge lies not in measuring inequality, but in justifying both its cause and its permissible magnitude in a free and prosperous society. On that question, consensus remains elusive—and in a pluralist world of heterogeneous agents, perhaps that is as it should be.