There is, but the problem with that is people get drained doing boring software over and over for years. No passion, no motivation, etc. Believe it or not, most people dont care about making a ton of money. Making a good income doing something you enjoy is worth more than making 3x that income doing something that makes you feel bored and crappy all the time.
Yeah, but usually, that 3x income also comes with normal, 9-5 working hours. So you slog through the day, and have plenty of time to do the passion stuff at home.
Plus, if we're talking about games, you have the money to pay people for quality art, sound, etc. So when you are ready to make that step, you can really give it some polish.