Can organizational professionalism be taught?
People who rise to the top of organizations generally have more important skills than pure IQ. Knowing how to manage people up, sideways, and down is an essential organizational skill. So is knowing how to keep emotion out of it all, how to maintain a professional distance from others without being cold or aloof, how to gain authority without being a jerk, calm social and organizational judgement, and so on.
People who start their own businesses or other organizations often learn such things slowly, by trial and error. In my career, I found Covey's classic 7 Habits of Highly Effective People to be quite useful.
Perhaps professionalism can be learned, but not taught.