To me this seems kind of like a company that has a big warehouse full of product that intentionally (or carelessly) neglects its fire alarm and fire suppression system. Or a warehouse of valuable product (say, many pallets of $5000 DSLR cameras) that has very lax security. It's the network security and endpoint security version of that.

It's not absolutely guaranteed that your warehouse is going to catch on fire, or that some guys are going to back up a box truck and clean out your valuable inventory at 3am, but there is a high likelihood of it occurring.