Plenty of people believe that, if perhaps only in a descriptive sense. Given the constraints of human social organization, it's just very difficult to not have a world where some kind of restricted social elite (that people may of course rotate in and out of, allowing for some kind of social mobility) is running things. Especially if we're even less comfortable with the main realistic alternative to social hierarchy, namely open markets.
Even self-proclaimed anarchists have long acknowledged that 'the tyranny of structurelessness' is a thing: trying to remove structure just makes it less readable and overt; it doesn't make it go away.
