If you are extremely rich and you can just gamble up to your heart's content, does the novelty of winning wear off? Like would you get tired of gambling since there's really not much risks because you can gamble with any amount and still receive little to no consequences?
It will never fade. IMO it's more exciting for them since they can bet huge and can win a decent. It's just quite different if you're just poor since every cents that you spend in gambling matters. Moreover, addiction is not solely base on what's your life status since anyone can become addicted.
Moreover, there are already cases of rich people who lost their fortune due to gambling. Hence being rich doesn't mean you'll stay that way when you continue playing and spend a good sum in gambling consistently.