I misread the thread title as including tolerance for students and tolerance for psychology ...
When I was at school (back in the dark ages) the general idea was that you were told something by the teacher that was "right" and that was what you had to learn and reproduce in the exam. The idea that there might be two sides to any issue was rarely, if ever, considered.
I remember even at university, doing computer science, a tutor disagreeing with the way I had suggested performing a particular operating system function, saying that I should do it using a technique he had lectured about, but which I didn't agree was best in this case. It was a fairly balanced debate until he told me he would knock 5% off my test score if I didn't change my view to his. I wasn't sure whether he really wanted to bribe me into changing, or whether he was testing whether I had the integrity to stick to my guns, but I stuck to my way of doing it anyway.
Interestingly, the method I proposed is now essentially the way things like keyboard strokes and mouse clicks are handled in Windows programs, and the tutor's method is not normally seen except hidden deep within the workings of the system.