If people enjoy the process of gambling, they don't care how much they win or lose. If the purpose of gambling is to earn money, it is also difficult to imagine that after a big win a person will suddenly stop...
When gambling the goal is to earn, it is clear that when they win they will not stop, instead they will increase their bets even bigger in the hope of winning high again, this is not strange that they have started to get addicted, so their behavior will continue to increase their gambling activities.
If gambling is just for fun they will not pursue defeat or income here.
There is a much higher possibility of developing a gambling addiction when someone starts betting repeatedly to make more money or to find a big single bet that will give them high profits. However, in this process, they may lose control of their emotions and become addicted. Even if they can control their emotions, they may end up losing all their money by betting repeatedly.
So, if you ask me whether I should stop betting after suddenly becoming rich, my answer would be yes. I would start my own business with that money and securely earn double the amount without the fear of suddenly losing it all. Then, I might start gambling again, but this time I would only play for fun without worrying about losing money, etc.