Maybe their goal is good, namely to be able to get money quickly and a lot from a game, but actually gambling cannot be used by them as the main source of income.
Yes, those who dare to bet large amounts of up to hundreds to thousands of dollars are rich gamblers who really have the goal of being able to win large numbers, but at least they are really rich people so that when they lose they don't feel a big loss.
I doubt that rich people that lose big money doesnt feel it since they are betting in proportion with their total bank roll which means the money they lose is still significant like plebs with 10$ bank roll lose 1$ in a single bet.
All gamblers goal is to have a profit. We just vary on our game plan to do it but we are playing to win and have fun. Its just happened that all games in gambling is designed for casino advantage so we are always lose compared to win.
Every rich person must have a limit in saving money in a casino bankroll and that amount must be less than the total amount of his wealth.
I'm sure rich people always have pretty good financial management even though they like to gamble, so it's impossible if they experience defeat and continue to feel so disappointed.
Every gambler certainly has a goal of winning and profit. No gambler wants to continue to experience defeat, even though he is a rich person. But it is also impossible to gamble without winning, every gambler must have won or lost in any amount.
But for gamblers who are really rich, they will definitely get more profit because if every time they play they use big bets so even though they lose 3x and win 1x they haven't suffered a loss because from 1 win they will definitely get finances many times greater than the amount of 3x losses.