That's been my thought too for years.  Why is there relatively little violent crime in some places where  everyone is poor?  In China's cities, back in the 80s and earlier, I'm told that if you dropped money or something valuable on the street people would chase you down to return it. Most everyone was just honest and wouldn't take advantage of anyone else to improve their own lot even a little.

I can swear there ain't no heaven but I pray there ain't no hell. _ Blood Sweat & Tears