It's also literally true. Violent revolutions in history come about when the people are fed up with the king and also have the means to do one.

It's also true the other way: you have to pay rent (poor pays rich) or else their thugs come and beat you up.

Pretty much everyone wants your money or they'll do what you can to make your life worse. You'll also do what you can to make other people's life worse if they don't give you enough money, like not working for them.