Individually the poor are not too tempting to thieves, for obvious reasons. Mug a banker and you might score a wallet containing a month's rent. Mug a janitor and you will be lucky to get away with bus fare to flee the crime scene.
“All species capable of grasping this fact manage better in the struggle for existence than those which rely upon their own strength alone: the wolf, which hunts in a pack, has a greater chance of survival than the lion, which hunts alone.”
“The accumulation of skill and science which has been directed to diminish the difficulty of producing manufactured goods, has not been beneficial to that country alone in which it is concentrated; distant kingdoms have participated in its advantages.”