I don't think so.
It is true though that a lot of people are gambling for the money that they can get out of gambling, it is a high risk, high return situation. But if a gambler have a lot of money, there is no doubt that it will stop him from gambling. I think that could be the worse scenario especially if that gambler is addicted to gambling.
If that were accurate then all of those that are rich will not gamble, having money is not a protection against your gambling tendencies, if anything a person that has a lot of money has a lot of risk of becoming addicted to it as at the beginning they will not feel the losses they are incurring as they have so much money, but when they begin to feel them they will have even greater of feelings of regret and will try to chase their losses with devastating effects for themselves and their capital.