Private enterprise suffers from the same problem as capitalist states: they are theoretically efficient, but in practice, a handful of people at the top become

Private enterprise suffers from the same problem as capitalist states: they are theoretically efficient, but in practice, a handful of people at the top become richer and richer, while everyone else is squeezed into de-facto indenture. As they say, capitalism works in theory. Once you get out into the real world, though, you need some kind of check on that imbalance of power.