I'm not sure if this is intended as snark at CEOs, criticism of the notion that a shift would occur, criticism of the notion that a shift should occur, or just general extrapolation.

Personally, I expect we would see unpleasant jobs become more expensive than they currently are, and pleasant jobs become less expensive than they currently are. I think it's tremendously unlikely that this effect would be so dramatic that "the CEO would be the lowest paid employee at every company", even accepting the implicit assumption that CEO is the least unpleasant job (which seems false).