On another level compulsion would change matters drastically: the kind of society that would emerge if such acts of redistribution were voluntary is … - Milton Friedman

The key to understanding the situation is the most elementary principle of economics: the law of demand — the higher the price of anything, the less of it people will be willing to buy. Make labor of any kind more expensive and the number of jobs of that kind will be fewer. Make carpenters more expensive, and fewer houses than otherwise will be built, and those houses that are built will tend to use materials and methods requiring less carpentry. Raise the wage of airline pilots, and air travel will become more expensive. Fewer people will fly, and there will be fewer jobs for airline pilots. Alternatively, reduce the number of carpenters or pilots, and they will command higher wages. Keep down the number of physicians, and they will be able to charge higher fees.

[I]t is very hard to achieve good objectives through bad means. And the means we have been using are bad in two very different respects. In the first place, all of these programs involve some people spending other people’s money for objectives that are determined by still a third group of people. Nobody spends somebody else’s money as carefully as he spends his own. Nobody has the same dedication to achieving somebody else’s objectives that he displays when he pursues his own. Beyond this, the [welfare] programs have an insidious effect on the moral fiber of both the people who administer the programs and the people who are supposedly benefiting from it. For the people who administer it, it instills in them a feeling of almost Godlike power. For the people who are supposedly benefiting it instills a feeling of childlike dependence. Their capacity for personal decision making atrophies. The result is that the programs involved are misuse of money, they do not achieve the objectives which it was their intention to achieve. But far more important than this, they tend to rot away the very fabric that holds a decent society together.

Is it really true that political self-interest is nobler somehow than economic self-interest? . . . And just tell me where in the world you find these angels who are going to organize society for us.