You know they're doing the same thing right? They make money off of what they like to do. They go out with other streamers. Host events for their fans such as Destiny Con. They get sponsors. Hell, King Gothalion, who has a wife and daughter, is starting a coffee business. Don't be so quick to judge other peoples life styles.

Besides, if they stream the whole run, its easy to tell if they cheat unless no one watches them.