what's the psychology behind sam hyde & why he became an edgy, nihilistic agent of chaos?

all I can really pick up from based on some lazy skimming is that he's basically a failed artsy theatre kid gone rogue (possibly holds some kind of resentment against his arts uni & their crowd for some reason? and hence going the other way out of spite?) - and possibly something about a parental divorce/daddy issues that were ramping up at the time?