The reality is that most gamblers, and specially the most addicted ones, are usually people without much money to begin with.
Most millionaires would rarely gamble. As you mention, there's little point for them to do that.
They can instead enjoy many other activities with the money they have.
Gambling is basically paying for chasing the fantasy of becoming a millionaire, which they already are.
Yeah that's true because in real life you can hardly see a wealthy man gambling because he has already gotten more than enough money that could get him whatever they need in life, so I totally agree with you because is very rare to see a rich man gambling, however even if gambling is a game of fun there is no wealthy man will just sacrifice his money on gambling just to have fun, although there has been numerous of people who has been talking about how most people sacrifice there money just to have fun.
I also agree with that majority of people or rather gamblers who easily become an addict are those who doesn't have money and when they gamble they are ready to put in everything they have just to have a good wining but the rich doesn't gamble much and even if they do, they gamble with strategy of targeting a club that has higher chance of wining with a smaller odds and put in money but when it comes to the poor they gamble too aggressively.