Yeah, agreed. It would be ideal to perfectly align your life passion with what you can get paid for, and a some people do manage to do that. It's not the only way though, despite what adherents of "success culture" seem to preach.

There is definitely a lot of work out there that needs to be done that isn't going to be anyone's passion. Still needs to be done, and it can pay well, and then you can do all kinds of fun things that you'd never be able to get paid for on the side.

A lot of people aren't monogamous in their passions either, which is kind of what you need to be in order to turn it into a career. Personally, I can't imagine every being so focused on one thing that it's all I'd want to do. I like my work, and I also love a lot of things that aren't my work.