Hmm, you're aware that when people insult each other, the meaning and gravity of the insult is relative to the relationship of the people, right?
I think you are, but you're trying to score a cheap shot.
Let's take two examples from each end of the spectrum. First, take two good friends, and one of them one day tells the other that he's always thought he was a liar and a generally bad person, and this is motivated by a disagreement they have. Second, let's take an antagonist who is consistently an asshole and a cheat, but is tolerated for other reasons, and a couple of people he was an asshole to say that he was an asshole.
The situations you're comparing are not very different from those two examples. You know it's a terrible comparison, but again, you're looking for the meme-y cheap shot.