They can prevent some things though. Aldo's motorcycle accident comes to mind in recent events.
True but isn't that just a drop on a hot stone? Most of these guys get injured in training. I see how it's necessary since they've got this insurance for fighters now and they don't wanna pay for something a fighter may or may not do in his time off but I don't think this helps the injury situation at all.
Plus if Aldo had never sat on that motorcycle we wouldn't have got Anderson/Bonnar.