I think the negative traits are what makes us love other human beings, the foibles and the flaws.
A man who thinks he has a higher purpose can do terrible things, even to those he professes to love.
I think graphic novels are closer to prose than film, which is a really different form.
In prose, leaps of logic can be made while the protagonist thinks about things and arrives at conclusions. Even with voiceover, there's no real way of having an inner voice without it taking over the entire story.