That's because the costs come from OPM. When you work at a prop shop and all the money is literally the money of the employees, things are very different. Sure,

That's because the costs come from OPM. When you work at a prop shop and all the money is literally the money of the employees, things are very different. Sure, everyone makes out like bandits and gets rich if things are going according to plan, but no one, and I mean no one, is wasting money. If your prop shop blowing up means everyone who works there is now penniless, you tend to get much better results.