I think you might have missed a fifth: paid with passion. Whether it nets as much long-term happiness or food in your mouth is free to debate, but I think a lo

I think you might have missed a fifth: paid with passion. Whether it nets as much long-term happiness or food in your mouth is free to debate, but I think a lot of people are just content with the idea of creating something they wanted. I think you see this a lot in OSS (linux, git, gnu) as well as e.g. the video games industry. I don't think it's a particularly sustainable way to get paid, but it can exit into the other 4 you mentioned.