I just realize the Rotunda brothers represent the two faces of Cena:
Bray is the face who has a cult following comprised mostly by children and who uses them as a mean to accumulate power and victories. He sees himself as a God and every time he buries someone he sees it as a necessary burning of thr world so he can rebuild it in his image. He was probably a child who people made fun of for wanting to be a wrestler, including his teachers, so he has an obsession of proving them all wrong, and to do that he needs to stay on top, always, because if he falls, then "they" win. Luke Harper is Cena's less educated fans while Rowan's represents a violent angry man trapped inside the mask of a harmless creature.
Bo is the face of Cena that became the gimmick. The one who actually thinks he is loved, that he is an inspiration, that always smile no matter how much they boo him, that never gives up, even when giving up would prove a necessary step torwards healthy self-doubt and self-improvement. Behind his smile you can see a neurotic person who lost touch with reality, who supressed his natural antisocial feelings in order to always be positive. Someone who doesn't allow himself to be sad or afraid, in other words, a ticking time bomb, constantly keeping itself in check, knowing in a subconscious level that, one day he will have to look at the mirror and realize that some things are, indeed, impossible.
It's some Adam Warlock kind of shit.