I didn't say they do nothing, I said they don't work for it. Travis Kalanick is a billionaire but he didn't get that money by driving millions of people around in his own car; he paid people (with investor money, no less) to do it for him. You can talk all you want about the huge risk involved in growing a startup but guys like Kalanick will never end up on a street corner holding a filthy cardboard sign.