This is probably OT and maybe even rude... but that lead-in with the Kanye lyrics is just strange. My reading of the lyrics snippet (and I'm certainly no expert in these things) suggests that the character is telling a girl to run away from him because he knows he's a dick. Specifically, he's a dick that's especially good at criticism and spreading negativity and of the list of targets, one group happens to be people…
The main point being; if you like the latter - you put up with (or celebrate) the former.
I can't see any reference to underachieving in the lyrics - I think you might be projecting some personal assumptions.
The main speaker is most definitely talking about being a high-achiever.