Modern psychology, anthropology and behavioral economics as well as other social and human sciences provide us hundreds of other examples that not only contradict the ruling ideology of the free market, but confirm socialist ideas.
For instance, Daniel Kahneman, the Israeli-American psychologist and expert in behavioral economics, who won the Nobel Prize Economics in 2002, did a large Gallup survey on happiness amongst 600.000 Americans. The most interesting result — he never expected to get by the way — was the following. His team examined how feelings of happiness vary with income. It turned out that below an income of 60.000 dollars a year, people got progressively unhappier the poorer they got. But above that income, extra income did not make any difference for the so-called experiencing self. But for the remembering self, there was no limit like the more money you make, the more satisfaction you get.