In 1976, Daniel Bell published a book called "The Cultural Contradictions of Capitalism." Bell argued that capitalism undermines itself because it nurtures a population of ever more self-gratifying consumers. These people may start out as industrious, but they soon get addicted to affluence, spending, credit and pleasure and stop being the sort of hard workers capitalism requires. Bell was right that there's a contradiction at the heart of capitalism, but he got its nature slightly wrong. Affluent, consumerist capitalists still work hard. Just look around.