Rich people have enough money and even have a strong source of income, they do not need to earn money by gambling, so they never want to earn money by gambling, they want to gamble only for entertainment purposes, to clear their minds. They have big meetings in their business, then when they return home and rest, they can gamble in online casinos for some entertainment purposes, or they can go to physical casinos, but their attitude is only entertainment.
But in this case, a poor person can easily be led to addiction, because their gambling purpose is to achieve big wins, from which their financial situation can improve, but ultimately in this view gambling, is will leads them to more and more financial problems, and this is a completely true fact, in the end its result is ultimately disappointment and disaster.
Everything you've said is on point, rich people mostly gamble to entertain themselves, they understand that gambling is risky so they can turn it into a habit that would attract addiction and make them lose wealth they've built for years or lose money while trying to make more when they can just invest their money and watch it grow on the long run.
What am trying to say is that poor people lack patience they're mostly very eager to make quick money and be like the rich class, they're willing to take risk at all cost forgetting the consequences, most poor people don't even mind risking the last cash on them just to make more.