If I was rich, I would have so many better things to do than gambling and sitting in front of my laptop all day. Simply not worth my time gambling even if I am guaranteed to profit from it.
If I was rich, I would invest instead of gamble. Investing is what gets people rich, and keeps them rich.
Unless you were talking about investing into one of those investment sites/cloud mining sites, then you surely will be poor in no time.
It's really hard to say if you'll still gamble once your rich. When you're on the top, you'll meet a lot of people that has become rich because of gambling. Once you socialize with them, surely you'll go to the casino with them because it isn't new for you at all, you've done it before. It's really hard to say no when it comes to your friends so as for me, if I'm rich, I probably will still gamble.