Rav Shlomo Zalman Auerbach and Rav Avraham Genechovsky were two of the Gedolei Ha-Dor, not only in Torah but in Middos. You want to read powerful, life-changing mussar sfarim? Read the biographies of these two luminaries. Angels in the guise of men.
I read independently about both of them that they would not call the cab driver a נהג as most of us do but "my מנהיג" - my leader.
This is "כבוד הבריות" extraordinaire.
