"They hurry like savages to get aboard an iron train/And though it's smoky and crowded they're too civilized to complain." -- "Bongo, Bongo, Bongo", Danny Kaye
The difference between the civilized man and the savage is that the civilized man follows the rules and the savage does not. A civilized man is quite capable of killing one, a hundred or even a million, so long as he is first outfitted with a uniform and a set of regulations telling him when and where to kill. A savage kills as he lives, without the need for rules and regulations.