I will just give the following example,
2 rabbis are applying for a Rabbinate job, One is OO and one is a YU Rabbi.
You can say the OO candidate is an Apikoras and a Koifer and denigirate him and say he really isnt orthodox
OR
You can say how great the YU candidate is, He is more qualified. Got a degree in psychology , has a great personality and will get more people to come join the Shul
People will like the YU candidate and he will get the job with a positive message , nobody was degenerated and you get the results you want without denegrating anyone