This is exactly why LLMs will replace humans: even if the work is crap, nobody will be accountable for the crap work, and it saves money.

Work where "crap" is an acceptable level of quality is work that probably doesn't need to be done.

So I think it's more likely that LLMs unravels the "bullshit jobs" entirely, rather than replacing them with crap. Once people realize it didn't matter if the output sucked, they'll realize the output wasn't needed in the first place.