Moral of the story - you can never be rich with gambling, and even if you end up being "rich" - you would lose the whole lot in no time ... only the house wins because the house has an edge.
If luck is on your side and you win $500,000, yes you have a chance to stay rich. The problem starts when you start acting too greedy. Wanting to win more and more. The end result is obviously loosing all your previous winnings.
I could win 500,000 USD and just decide to cash out. Does that mean I have not gotten rich through gambling?