Martingale strategy with big bankroll will make your gambling experience worst if ever you ever a losing streak like that or more because you are increasing your base bet exponentially. Thinking how terribe it can be on Martingale strategy makes my spine tingle. Assuming you invest your life savings on your bankroll just to have a room for long lose streak and then this kind of catastrophe hits you hard that wipe your money without you being notice it.
This is the important thing I learned on playing gambling. Just use bankroll that you can afford to lose since this kind of long lose streak can hit anytime since we are always exposed to risk the longer we play.
I once was talking with a guy that i thought was intelligent as he was good in chess. And he was defending the martingale strategy to me and nothing i said made trough him. He was convinced that if you had enough money it would work. I tried to argue that eventually it's likely that there will be a losing strike that wipes your balance, no matter how small your bets are or how much money you had.
And if you had so much money what are you playing with small bets anyway. It would take ages to give him any meaningful wins. Then he started to argue that if he had infinite amount of money it would work.
That made me stop talking. I wasn't going to argue about the absurdity of infinity, but it was very telling to me how far people with gambler's fallacy are willing to go to not face the reality.