Yeah that's the biggest problem, people getting generational wealth in one night for performances that you wouldn't think the, "best in the world", would do.
Kind of like Lars from Metallica. I still love that band, they put on a good show last year, but Lars hasn't taken drumming seriously since the mid 90's, and yet he's still at the top of "rock stardom". He struggles to play the most basic beats, can't play his own songs, and edits live videos on their official social media so his drumming sounds better. Maybe he has health problems or a drug problem or something, but you'd think a musician in one of the biggest bands would be at the top of their game 99% of the time.