And people without money and people with money would be another. The people with money need the people without money to give them ideas and creative work. The two groups hate one another but also need one another. And of course the artists need the time-servers to get cash to live. It's the tension between these two groups that informs today's cultural dynamic.
Ad agencies hate their clients.
The makers of TV programmes hate commissioners. Film directors and writers hate the studios. The creative people resent the fact that they are funded by bodies of whom they disapprove. They bite the hand that feeds them by complaining to friends of the client's lack of vision. They may also express their rage and resentment by storming out of meetings.