It is heavily alluded in the novel that culture citizen have been genetically engineered somewhat to smooth their personality. Except for extreme shyness, they

It is heavily alluded in the novel that culture citizen have been genetically engineered somewhat to smooth their personality. Except for extreme shyness, they would seem like charismatic well balanced individual (source wikipedia I think). Even the language they speak has been engineered. So in culture world, nobody would be deviant enough to want to do those things. It is a bit like star trek, there must have been a few dark ages (they must have had eugenism gone wrong at some point) before reaching the fully evolved post scarcity society that is the Culture.