I can assume that a gambler who regularly violates his budget allocated for the game will not be able to enjoy this hobby for a long time, since he will very quickly lose all the money 
And after that, he will have other problems - to get rid of gambling addiction and engage in earning money to improve his financial situation.
And after that, he will have other problems - to get rid of gambling addiction and engage in earning money to improve his financial situation.How many gambler try to stick with their regular budget on gambling even if they see others earn more from investing more than their regular budget. Here where they fall in to invest more than what they regular do. This becomes an addiction when they see a profit few times from the extra investment. Self control can only cure oneself from addiction.
Usually, in most cases, additional investments in gambling only lead to additional losses. But you are right that those gamblers who are "lucky" to win by making an unnecessary spend become addicted and in the future they try to repeat this move, but only lose extra money. This is that paradoxical case when luck plays against a gambler, it is much more profitable to lose and immediately understand your mistakes and not repeat them anymore than to be lucky once and in the future it is futile to hope for luck again and again.