The widespread notion that free markets are corrupting is rooted at least in part in the innocent truism that for the market to work people must act according to self-interest. Without the motivation of self-interest, there would be no profit seeking, no price competition, no production and exchange. True enough, the market requires self-interested behavior.
But many make an illogical leap from this truism to a falsehood: that if one is self-interested, one cannot be other-interested. Many see an either/or choice. Scrooge can care about Scrooge, or he can care about others: the poor, his clerk Bob Cratchit, Cratchit’s family, including lame Tiny Tim, and so on. He cannot do both.