"I do - have a fantastic and famous relationship with (my) students. So that the
students and parents are so happy they request you for all classes and even insist they
will only attend your classes."

Yes but if that is true then they should be proud of it.

You fantasized:

he is a "hero in his own mind".

No, nobody said anything about being a 'hero' and if parents and kids are requesting that teacher over and over again then it's not 'in their own mind' but a reality.

You come off as very 'Chinese' in that your automatic reaction to anyone's success is they must be 'shaming you' and trying to be 'bigger than you' and therefore you must reduce them and show you are superior.

Yuck! I find your morality and relativism disgusting and backward.