It does seem that way

Author Jerry Pournelle's "Iron Law of Bureaucracy:"

The Iron Law of Bureaucracy states that in any bureaucratic organization there will be two kinds of people: those who work to further the actual goals of the organization, and those who work for the organization itself. Examples in education would be teachers who work and sacrifice to teach children, vs. union representatives who work to protect any teacher including the most incompetent. The Iron Law states that in all cases, the second type of person will always gain control of the organization, and will always write the rules under which the organization functions.

Seems to go along with the observation that only Company Men can ever run the Company, an axiom universally applicable to Wall Street, Congress, the Pentagon and education.