Tony Judt writes:
The wider the spread between the wealthy few and the impoverished many, the worse the social problems: a statement that appears to be true for rich and poor countries alike. What matters is not how affluent a country is but how unequal it is. Thus Sweden and Finland, two of the world’s wealthiest countries by per capita income or GDP, have a very narrow gap separating their richest from their poorest citizens—and they consistently lead the world in indices of measurable well-being. Conversely, the United States, despite its huge aggregate wealth, always comes low on such measures. We spend vast sums on health care, but life expectancy in the US remains below Bosnia and just above Albania.
Inequality is corrosive. It rots societies from within. The impact of material differences takes a while to show up: but in due course competition for status and goods increases; people feel a growing sense of superiority (or inferiority) based on their possessions; prejudice toward those on the lower rungs of the social ladder hardens; crime spikes and the pathologies of social disadvantage become ever more marked. The legacy of unregulated wealth creation is bitter indeed.