Sure but if both parties freely decide to engage in this time money trad what do you propose to do?
Do we want some congressional committee to sit around and decide which jobs are bullshit? I sure don't.
It turns out the Nash equilibrium of the world is that some people have jobs that seem silly on the surface but end up being the optimal move for everyone involved. Out of all the problems in the world this seems like a weird one to fixate on.