Hang on, you include batman's house? And staff? Why is his alrfed's salary included? If you include those two then you have to include pepper potts's salary and the cost of building stark tower, that's only fair. Also it would make more sense to have Lucius Fox's salary ahead of Alfred's?
Also, if you're not gonna include the gadgets etc that batman has, surely you have to include the cost of R and D? Tony Stark didn't just imagine these suits then make them all in one step? How many suits has he had to make before this one? 5?
Beyond the cost of things, Batman has to save the day in spite of the police/SWAT/Army/Snipers etc, they're not working with him, apart from Lt. Grodon. He has to chuck an entire SWAT team off a building before he can save the day. Batman is still badass even without the suit, Bruce Wayne could snap Tony Stark in two, with his thumb. There's something so satisfying about Batman punching people, IM just doesn't cut it.
maybe I'm missing something here, but Iron Man's totals don't even approach Batman's. Batman's total is 600+ million. Iron Man's is just over 100 Million.