It is commonly believed that a proper function of government is to “level the playing field” by ensuring that the rich pay their “fair share” of taxes, and that the poor and disadvantaged receive extra help from government in the form of subsidies, grants, and “welfare.” (Originally called the “dole,” welfare was given its current name in the 1930s, as a way to sell FDR’s “New Deal” program to the American public. The term was intended to confer constitutional legitimacy, since the preamble proclaims one of the purposes of government to be supporting the “general welfare.” But in reality, “welfare” is just a new name for the dole — the traditional term for using the government in order to rob Peter to pay Paul.) All such policies have as their stated aim creating greater equality. Originally scorned as “the leveling impulse,” wealth redistribution has come to pervade much of what the federal...