OK, assuming that you do get rich, you probably will never be able to quit. You'll be addicted to the money and status. You probably will have a trophy wife who you rarely see but who spends piles of money on clothes and shoes. Your peers will be buying bigger houses and more expensive cars. You are rich, but in your milieu there are many people infinitely richer than you are. You are jealous. Your money and status become less of a prize and more of an entitlement. You want more because you "deserve" more. You want to keep up with the Joneses. You want to show the lads you're a player.
I know investment bankers who look like junkies due to lack of sleep. Some snort cocaine. They put in 90-100 hours per week. They don't have time for girlfriends, so they spend money on high-level escorts. They say they'll quit by the time they're 35 or so, and move to Costa Rica, or to the South of France. Some say they want to become wine-makers. Others want to open their own gourmet restaurant. Some desperately want to move to private equity or a hedge fund. They will never quit. A fat paycheck is a golden cage.