D'var Torah...Vayeitzey

Why does Rashi state that the departure of a Tzaddik leaves its mark, wouldn't the same be true of a Rashah or any influential person?
Maran R' Shmuel Berenbaum ztz'l : It's true that any influential individual leaves a mark in his wake. However, regarding a tzaddik this is a chiddush. Since a tzaddik constantly produces "peiros" through his good deeds and spreading of Torah, one might have said that he surely leaves behind him a great legacy. So much so, that when he departs, his absence would not be felt as a great loss. Therfore Chazal must inform us, that as much of a permanent and everlasting effect as he had upon his surroundings, it is still a great loss to his community when he leaves.