I was with him all the way until "The ruling class has figured out that a happy and productive population with free time on their hands is a mortal danger ". The author does make the point that it might also be the people themselves pushing for it, at least. The 'ruling class' really doesn't care if anybody is or isn't working pointless jobs. Society as a whole is forcing people into pointless jobs by viewing anybody…
I was with you until the end. Can you provide an example of an academic sabotaging useful production in order to prove his or her value?
Even if an academic is not explicitly sabotaging work, it's clear from the amount of time spent on grant applications and general bureaucracy that their useful production is being sabotaged.
To meet bureaucratic standards, researchers are often required to teach and educators are often required to publish... it's not effective production.