The recent movie 'Paterson' is perhaps an interesting illustration of a character who is apparently content in an unskilled job. The title character is a bus driver whose passion is for poetry which he writes during breaks, partly inspired by the people he sees while driving around (so perhaps the job is somewhat aligned with his passion, there). Also blessed with an extremely stable home life, Paterson radiates a zen-like modesty, acceptance and contentment.

Of course it's just a movie, but then Bukowski was a poet whose works are 'just' books (and movies) themselves. Not disagreeing with you - I would hate to feel stuck in an unskilled job also - just throwing this out because I think it's interesting.