Habitual thieves are an odd lot and they don't necessarily operate on a single premise. Certainly there are people who steal with profit as an incentive, but there are many who steal because it is a game. For the victim it makes very little difference, but from my observations over several decades, the one who makes a game of it is more likely to steal something of greater value simply to chalk it up as a success. These individuals have a serious mental / emotional defect. They can be a stranger but the can just as likely be a good friend. They are often, but not always social friendly and outgoing and often feel remorse for doing something they feel is out of their control. In fact, they feel most things are not under their control and the theft of an expensive item, either individually or collectively, gives them a sense of accomplishment, while the guilt they feel is often not enough to overcome their compulsion. Those who steal with profit as their trigger can be dangerous when confronted. Their motives are more visceral and typically anti social.
Obviously neither is acceptable, but I feel that many people think this whole issue is simpler than it really is.