There’s nothing wrong with people doing what they want to be doing. Even to your “perceived” grand visions like curing cancer or something else society has high value of - those people are usually motivated by doing that particular thing. And those people try until it’s either feasible or not, meaning they can make a living off of it. And they will get better by doing any of those things by failing and then being motivated trying harder and perhaps succeeding. So it seems that the economics will just work itself out. But I wouldn’t have a problem with somebody wanting to do something especially when they actually make an effort to do something. I think all people should have the opportunity to at least try, especially if they do you one of these jobs they don’t want to do to be able to afford the opportunity to try what they want. Respect to those people.