Jerry Pournelle is a renowned science fiction author who has been described as being "slightly to the right of Genghis Khan".
Pournelle's Iron Law of Bureaucracy
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 representative 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. 
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