Every power conditioner should have safety ground connected on it's input. Every socket should have ground as well. The problem is you can't have a path through the chassis, bypassing your ground loop prevention provisions, so the ground is isolated from the backstrap.
BTW almost all European sockets are isolated since they simply don't have a rear backstrap of metal or anything to speak of, so it's only the US where people have anything to really talk about. It's just a circumstance of our receptacle form that it cost more to separate the ground and hence it gets designated for when necessary.