Unfortunately we have the examples of the Stanford prison experiment and the Milgram experiment to show us how much behavior is contextual. People who live as normal, law-abiding citizens can do horrific things when the context puts them in the frame of mind that such behavior is expected of them. People can torture prisoners because they are in position of power and the prisoners are worthless scum who deserve to be mistreated and then come home and engage in charity work or whatever is expected in their cultural milieu. Truthfully, I hope never to learn how far I can be bent.