Anybody can get guns and kill people. What really makes a man afraid is to take his power away from him. Batman has been shot, stabbed, beaten, and just about anything the mobsters throw at him. The Joker actually touches on this with his line "you have nothing to threaten me with, with all your strength."
Take a man who is used to being feared. Pit him up against a creature that flies, comes out of shadows to beat your partners to bloody pulps, is bullet proof, has single handedly stopped some of the biggest shit from happening, and tell this man that all his usual tools, tricks and weapons will not work against this creature. Slightly scarier than a man with a gun, no? Remember that the criminals do not know what we do about Batman. What they do know has been told to them by people who know even less. They very well think that he kills people or is one step away from it.
Kiltman
Take a man who is used to being feared. Pit him up against a creature that flies, comes out of shadows to beat your partners to bloody pulps, is bullet proof, has single handedly stopped some of the biggest shit from happening, and tell this man that all his usual tools, tricks and weapons will not work against this creature. Slightly scarier than a man with a gun, no? Remember that the criminals do not know what we do about Batman. What they do know has been told to them by people who know even less. They very well think that he kills people or is one step away from it.
Kiltman