They want money and there's no reason not to do it. This isn't a matter of meeting peoples needs, most thefts are not of anything necessary. It's just a job to them.

> This isn't a matter of meeting peoples needs

Curious how you reach this conclusion from the point that they do it for money?

> They want money

> It's just a job to them.

That's pretty much exactly how most people meet their needs: do a job for money. That they are stealing things other than what is directly needed is a distraction from the point that they are stealing to meet their needs.