btw I checked in ASDA today and they didn't have any lives - and the cleaners are called "ASDA aces" - so, proof there that they don't sell lives or everyone in there would have one and not a crappy belittling job title.
If you click on the image-link in wolf's signature. You are taken to a picture from the movie Office Space. Office Space is a movie about people stealing money from their business. Therefore, Wolf loves crime movies. And he loves crime. Hence why he's the criminal.