Of course not all rich people gamble because they have mountains of money so they don't see gambling money as important. Especially the middle class will continue to gamble even after repeated losses. Their only goal is to get rich in a very short time. But we can get some stories of people who got rich by gambling. Gambling is not really for fun, and there are very few people who consider gambling as fun.
But in fact it does happen where there will definitely be people who do gambling just for fun, especially for those who have wealth who think that the money we call big is not too valuable at all.
We can see many examples especially for some artists or athletes who do gambling and are not responsible for spending their money in gambling like Drake did or maybe what recently happened like when Neymar lost his money which I might even find it difficult to reach where he lost 1 million in just a matter of hours in gambling.
Although we can see a look of disappointment but it happened not because he lost the money he had but was disappointed because of the defeat that occurred.
And for the work done regardless of what happens there will be people who will still consider gambling just to pass the time and have fun with what they do.