[Aytumious]

I'd say the main deterrent to me taking the money is my conscience. I simply would not be able to live with myself if I took the money. I'm the guy who hunts down the stranger who lost his wallet or who gives the money back if a cashier gives me the wrong amount.

I think social ostracism and the human conscience are the main deterrents in general for criminality, followed by the threat of incarceration if caught.

I really don't believe in morality per se, and I make a concerted effort to not frame my world in terms of "right" or "wrong" because doing so simplifies your view to the point of making you unable to see the true motivation behind most actions. If the situation is indeed a matter of life or death, looting from those who will not realistically be harmed in any tangible way is justified.