There are allot of people who got rich by gambling but are they still rich. There are more people who could say to you that you dont must go to gamble. There more people who got rich and gambles everything away so look further without gambling your life would be many times better.
I don't see or heard that someone got rich of gambling only now as you said. Many rich people who gambles got broke rather staying rich because all we know that gambling will destroy your life if you are addicted to it. Many people said what you said but the decision is still on yours not on them so whatever they said if you follow them then its your choice so make sure you are in the right way.