If I were rich I was playing games for fun purposes only. Then too I was not attempting to put much money at stake. I was doing gambling with few games but amount of bets was not increasing for sure. These are poor people who are used to take risk on all whatever they own. You will see rare case when some rich guy goes all in. They use money to make more money easy by easy.
Yes I also would do this because its good to sometimes enjoy yourself and with gambling its really easy and it gives you a very good feeling when you win.