The problem is rap nikkas don't position themselves to where they can eat as good or better by retiring from rapping. If Jay-Z stayed retired he wouldn't be as relevant as he is today and he wouldn't get the same deals outside of music that he's getting. This is why we've never seen a rapper retire and stay away. We've never seen a nikka who was still moving a lot of units walk away from rapping. Even Snoop's old ass knows the music dictates the opportunities which is why he continues to make trash just to stay visual.
I can't wait to see a nikka in his prime or a little past it like Wayne walk away while they know they can still go platinum, that will be a huge step for the culture. I don't know why they can't set us real businesses that they can eat off of forever while they're relevant. Making 300k a year from your business beats what Master P is doing to his legacy right now.
While what you're stating is true for the majority of hip hop artists former & present, Master P would be one of the exceptions here, as he probably makes $300,000 or more in interest from his various investments and enterprises doing little to nothing at all. For a few select rappers it's not about the money or financial security, some are just addicted to the status of fame & stardom. Personally, I think Master P misses being in the spotlight and is trying to recapture a prior period when he was on top of the game.