Being popular, bad, and releasing prolifically doesn't take anything away from the good artist who releases once a year.
More popular artists earn more, definitely.
But the good artist is usually good because they're not making music with primarily commercial intent, so we don't really have ground to comment on who π΄π©π°πΆππ₯ be earning more or who π΄π©π°πΆππ₯ be more popular.