Two points.  One, most students get rejected for law school.  Knowing this, I took it upon myself to prepare those interested in every way possible and wrote highly detailed letters of recommendation.  While you may not appreciate my efforts, they did as I received numerous teaching awards.  Two, good teaching requires face-to-face intraction.  I had to know if students were getting the material and to adjust accordingly.  I also had to pitch the material in such a way that all students would get it.  What you view as ego, I view as doing my job well.  And, yes, I am proud that I was able to help many students throughout my career and nothing you say will alter that feeling.