Nathan Knorr had issues about men's penises, he'd go on ranting about masturbation and not touching one's willey while going pee, and certainly not looking sideways if you were at the urinals, that could lead to homosexual ideas. Also he was very insensitive of other's views, feelings and knowledge.
In CoC you can find out how Knorr treated Ed Dunlap (Gilead Instructor) very badly when Ed had a nerve problem in the face and side of his head that was quite painful, Knorr transferred him to work in the printery which acerbated the pains.