I remain indifferent to the "ooh, the academia says so!" attitude. I know it very well, and that's the same atittude as that of a shaman who aims to assert his authority by insisting he is the only one who can "speak to the Spirits".
Since next to everything in humanities is debatable and debated, the teacher needs this tactic to suppress attempts at argument, so he can finish his lecture in peace. I guess this attitude was practiced on you and made an impression on you long before you began practicing it on others, but it doesn't really work outside the sacred walls of the monastery, as I have found out from personal experience.