This is only applicable on games like Poker, Blackjack(Standard Deck and Sports book which the result can calculated through probability which you can use to your advantage. Most of the guy that you mention excel on poker which means they are relying on dominating other people instead of the house.
But the regular gambling games offer by the casino is based on pure luck which this skills in math is not an advantage. Also even skill based game like poker, there’s no guarantee for profit even if you are good on math because there’s always someone that is much better to you.
Thank goodness there is someone in this section who knows what he is talking about, until now I had seen a lot of bullshit starting with the OP, who mixes gambling with poker, as if you could win at roulette by studying mathematics as well. For example:
Always remember that luck also matters in gambling but using betting strategies and math can improve your chances of winning the game. In games like poker math probabilities and game theory. Regarding the value of school some disagree, but skills from subjects like math can unexpectedly help even in gambling.
This is just nonsense and as I said, it mixes gambling in general with poker.