Earlier quoted context omitted.
I think we're fully in the "see what little you can pay someone to get them to do a job" optimization mode. The marginal cost=marginal benefit argument doesn't seem to apply anywhere. On the contrary, if you're actively making something (burgers, computers) then you're usually not paid enough to actually consume those things on a regular schedule. I think that's a symptom of an emergent caste system.
So each Boeing worker should be able to buy their own 787 Dreamliner in any fair society?
If they are getting paid less than a 787 that just means they aren't producing entire 787s, they are producing parts of a 787.