There's also the intellectual property facet of this. Someone who steals your work could try and sell it to your competitors. This includes code as well as a list of your clients and your business plans.
If you are a developer and you have not encrypted your IP on a laptop you are going to leave by itself, well, your shareholders would probably be pretty disappointed.
I'd hope then that you are using proper backups, it's a lot easier to keep copies of your work remotely, than make a copy of a laptop.