I'd definitely accept toilet jobs for $5,000/hour, then subcontract out to a plumber for their going rate, and pocket the difference. IMO a bad example.
Then I'm no longer a contractor, and they have to hire me, put me on a payroll, etc. I doubt they want to do that.
I probably would walk away from that, but my point is that if you are a contractor, then the requirement is simply that the work be done, not that you do it personally. If they're willing to pay absurd money for something you don't want to do but other people will do, subcontract.
i m certain you can put in the contact condition that a specific person died the work. imagine if i was a musician talked with composing a song for a game. the client contact to Mr because of me . they won't be happy if they find out that i sub contract it out.