Seriously, I think a lot of rich people, having amassed enormous fortunes, find themselves still unhappy and want to make everyone else more miserable in the hope it will make them feel better.

The history of all hitherto existing society is the history of class struggles.

Freeman and slave, patrician and plebeian, lord and serf, guildmaster and journeyman, in a word, oppressor and oppressed, stood in constant opposition to one another, carried on an uninterrupted, now hidden, now open fight, that each time ended, either in the revolutionary reconstitution of society at large, or in the common ruin of the contending classes.

Everywhere you will find that the wealth of the wealthy springs from the poverty of the poor.