Few ideas in contemporary political philosophy have gathered more popular momentum than limitarianism—the view, most systematically developed by Ingrid Robeyns, that there ought to be an enforced upper limit on the amount of wealth any individual may accumulate. The argument is intuitive in its moral architecture: extreme wealth is unjustifiable because the resources held by the super-rich could be redirected to meet urgent human needs that currently go unmet. On this view, billionaires are not merely a sociological curiosity but a moral indictment, evidence that society has failed to distribute its productive gains justly. No one, the limitarian insists, could possibly need a billion dollars. And if no one needs it, no one should be permitted to keep it.
The appeal of this position is not difficult to understand. In a world where we are frequently fed images of persistent poverty, disease, and environmental disasters, the spectacle of private submarines and superyachts can seem almost obscene. Yet the limitarian argument rests on a series of assumptions that, when examined carefully, turn out to be philosophically fragile. It misunderstands how wealth is created, how innovation works, and what inequality actually means for human welfare. Most importantly, it treats productive excellence as a zero-sum threat when it is, in truth, the engine of collective progress.
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