Especially if you bet big and you lose. You are rich and you can afford to bet big, but you lose. Depression can sometimes sets-in in those moments. And that will destroy any person, rich or poor.  That is bad and can destroy a family if left uncheck. So to avoid it, avoid gambling whether your rich or poor.

To be honest, it is not stressful if you are only gambling the funds that you can afford to lose. You should not have gambling in the first place if you do not know how to use your funds smartly.

Rich people are among the biggest gamblers!
Gambling is not a poor vs. rich thing, it's a personality thing.

Everyone wants to win. And most people are greedy. This two will satisfy that even if you are rich, you will still be tempted to gamble. The feeling that you get when yoh win can be addictive. That is why, even if a person is rich he will still gamblebif he was a gambler before. He will still want to have more money and he will crave for that feeling when he wins.

Gambling itself is not bad, but how you handle it can be bad because if you are spending to much money in gambling and you will lose than you can be poor and that will be bad.
If you are rich you have to opportunity that you can gamble more, but just only play with small amounts.

Some people manage losses better than other. If you are a good gambler and by god gambler I mean a person that can take loses and don't go insane, you can have a decent amount of fun and get a decent amount of profits as well, and if you lose you will not go insane because that's what makes a good gambler above everything else.

If i am rich, i will confidently answer it no because you can give help or donations to poor people instead of losing it in gambling. By the way i am already rich and no need to become richer.

Gamble it, why not? not all of it though just a fraction

Why? to quench my primal needs of winning

well, a lot of money will not be wiped out if gaming with stakes a bit, you just need to control yourself so that you can add to the money you have from gambling, but I guess rich people who play gambling was just spent, so win or lose them does not matter