If you're seriously going to put on the batsuit and patrol the streets of Gotham you have to have three things: a level of fitness well beyond most highly trained athletes, access to an arsenal of high tech gadgets, and just enough crazy to pull it all off. There's also a little bit of something else that mixes in there when you don the cape and cowl to become the Batman. That element that strikes fear in the hearts of criminals and brings hope to helpless victims. Think about it, when Kyle Rayner first put on the Green Lantern ring (arguably the most powerful weapon in the universe) he constantly had to prove himself to others in the super-hero community. When Jean-Paul Valley put on the batsuit he had nothing to prove, he was Batman. (I would have used Dick as an example, but he was already an established superhero when he put on the batsuit).