Exceptions might exist. There is a possibility that if a gambler is offered a specified amount of money then he would think about quitting gambling.
The possibility or chances of them quitting gambling right after someone offered a specific amount of money is 1/10, they are just going to stop for a while and think about if they really should stop or not, guess what, the urge of continuing playing gambling will be always stronger than the will of quitting it, that's the sad truth about them.
Because in my opinion gambling is itself a very tiresome and stressful activity.
For you maybe, but it will never be that way to those who treat it as a way of earning money and for entertainment, gambling will be always about risk and fun for them.