Having an excessive bankroll in gambling wouldn't stop you from having a limit to the resources that you gamble with. If you don't have an amount set aside for gambling you will stake above your means without realizing yourself. Most people don't know how easy it is to gamble with a thousand dollars, that money can be everything you have and it can be exhausted in a Twinkle of an eye. The More you keep funding in the process of chasing your losses the more you keep throwing all your money away. Having an excessive bankroll doesn't mean that it's inexhaustible.