The Dice Roll.

People don't become crazy or violent or socially outcast because of the way they're brought up or whatever. People's destinies are chosen by the infinite dice roll of dimensionality. Effectively, if there are infinite universes, every universe which contains you must be slightly different, except for the row of infinite universes where you are all the same. In some of those universes you're a scientist, or a story teller, or the savior of human kind, or dog kind, or some kind on some other planets. But in other universes, the dice roll forces you into a life of awkward social standing or worse. You're not a murderer for any other reason than because you have to be a murder in an infinite amount of universes contained within an infinite amount of universes. You can't avoid fate. In an infinite number of universes, an infinite number of people will try to blame an infinite number of things. In quadrillions of those universes, nothing will even be different save a single particle of air around them will be different at some point in time. In an infinite number of universes, nothing will change save time will go backwards. But it's all the dice roll.