deiyezooger, good point. Unfortunately though, most teachers aren’t aware of the middos of their students. The brilliant know-it-all who always takes part in the discussions, davens with great kavana and constantly raises her/his hand, may have rotten middos. Or the quiet girl in the corner who seems to be the sweetest thing who’s just shy, may be dead jealous, or badmouthes other people. Or the other way around.
Life isn’t fair. Guess who typically get’s to be head of G.O.? The smartest, lively top girls. Who’ll get the teaching job? The girl who worked hard on her middos? No. The one who’s popular, smart and well-liked. This is how things work. Tough. You won’t change the system.
But y’know what? The girl/boy who has refined middos, gets her/his reward in the long run. After all, people like to befriend or employ people who are open-minded, patient, accept others’ veiws etc.