להורות ביום הטמא וביום הטהור זאת תורת הצרעת
The one who speaks lashon hora, who slanders with impunity, has a jaundiced view of people. In order to speak negatively about someone, it is natural (and probably necessary) to knock down his personal opinion of the subject of his lashon hora a few notches. He, therefore, has no qualms about humiliating him, because, after all, what is he? While this attitude may not course through the mind of every baal lashon hora, the mere fact that he is callous and unfeeling concerning the feelings of his fellow Jew is an indication that he has a low opinion of him….