Many of the most famous atrocities in history were not caused by the ill-will of the commander’s so much as losing control of troops. It used to be an axiom of military lore that if a position is taken by storm, one could not count on the safety of anyone surrendering. If I recall that was shown in Saving Private Ryan when several Germans defending a hill at Normandy were killed at the moment of surrender. A real life example was one East India Company officer in charge of a Ghurkha unit chasing dacoits(bandit tribes). The dacoits had holed up in a tough position and the Ghurkhas had to storm them. What was interesting was that the officer boasted that none of the dacoit women had been molested. In other words he took it for granted that soldiers would lose control and thought it a matter of pride that they hadn’t.