I'm sure if you closely examine the bullshit jobs, you'll find they usually exist for a reason. You can't get rid of them unless you tear everything down and rebuild it. If it was so easy, companies would have already laid them off.
The question is always: who is benefiting from this?
If people had more "disincentive to work" then getting people to work would require paying them more money. Jobs that self-cancel their own profession could then hire fewer people industry-wide and result in a net productivity boost, since whatever they do in the alternative can't be more useless than what they were doing.