Did Marx not recognize the value of intellectual labor?
I don't remember whether he thought it was intellectual capital that led to property-ownership, or if he separated the two.
In Cambodia the Khmer Rouge targeted Professionals, such as doctors, lawyers and teachers, According to Robert D. Kaplan, "eyeglasses were as deadly as the yellow star" as they were seen as a sign of intellectualism...
http://en.wikipedia.org/wiki/Khmer_Rouge
Yes, but only so far as those intellectual pursuits were to be used for the general benefit of all.
If you were smart, it was your duty to give up those ideas freely.
Reality doesn’t work that way.