But the essay as a whole suffers from assumptions that the market is pretty efficient. It's really hard to believe that the market as a whole is anywhere near efficient, particularly the CEO market. Was the CEO of Bear Stearns or Lehman Brothers worth the salary they got?
(I think it's easy to point at a lot of likely reasons for distortions in the upper tiers of the salary scale, but I think that distracts from the point - a good number of CEO salaries were empirically demonstrated to be poor investments.)