When you consider the time value of money, the average person will only get back half of the money they pay into Social Security. Only the bottom 20% get back more than they pay in, they get 25% interest on their forced contributions. Incredibly, 80% get back less money than they pay in.
Social Security is mostly a wealth transfer program. Workers transfer their wealth to the federal government. Only a small group benefits from this huge bureaucracy and tax scheme.