Grand Theft Auto V: Michael and Trevor. Michael is a backstabber who criticizes other backstabbers (a gold digger who gave him ten bucks and an autograph for cleaning up her sabotage of her husband's vehicle, and his psychiatrist for ratting him out after getting paid in the hundreds of thousands), and Trevor criticizes Michael for his betrayal of friendship, even after brutally killing his best friend's cousin and said cousin's fiancee for pissing him off, and selling people to a cult. Neither of them are very morally conflicted about this, as seen in this exchange.
Michael: Ooh, Hypocrisy, Franklin; Civilization's greatest virtue.
Trevor: Jesus, your therapist has a lot to answer for.
Michael: I know, I still hate myself. But hey, at least I know the words for it now.
Trevor: Yeah, but I hate you, and I know the words for it, so does that mean I don't have to go to therapy-
Franklin: Hey, look, you two motherfuckers terrify me of that middle-age.