This guy should be a rich guy. I mean not all of the time you can win, as you've said and also, remember that you can't always win in gambling the reason you should be rich and should be able to support your habit. Also, this might be just good for people that can support what they want to do since not all of the people who gamble can support their gambling habits.
I don't think that it requires you to be a rich person to enjoy gambling as an entertainment if you have this kind of habit. But you have an option to choose whether you will gamble expensively or with what you afford to lose.
If you want to invest on any gambling games please fix yourself what games you are playing and make your own pathway to do it.
Investing and playing are different, you gamble to play and you invest to earn. And with what you said, it's all about gambling to play while in investing, you choose a casino like bustadice that offers bankroll investing.