I agree, but had he used sweet words to mislead, destroy and mock ultimately your husband in your eyes, the corrupting dumbing down results would have been the same.
Some anger puts undue guilt on people while other anger seeks to remove a yoke, as in when Christ whiped money changers out of the Temple. Ultimately, for a man, overcoming scars, legit or not, makes him more beautiful and prouder, though, but you are right, there is a point where it becomes saddistic and both it and irresponsible mazochists must be removed.
He was placed in a position of authority; he abused that authority for his own selfish purposes. That made the teacher less of a man in my eyes, and unworthy to teach my husband or myself.