Very True But the Corps Automatically see The Reach or DarkSeid Or Mongul as a Threat and are on Full Alert. Batman is a Master of Finding Out what make people Tick and Using it against them. With Hal in Justice League number 1 he used Hal's Ego to distract him and feigned interest in His Heroics to keep him occupied.
Non-sense. The Guardians are just plain dumb if they allow the most powerful weapon in the world to be stolen by anyone with pick poketting skills. Face it, Bat-wanking was at work on that instance.