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human
[Iron Man/Batman] What are the major differences between Tony Starks and Bruce Waynes stances on crime?

This question has been on my mind for some time now, I think it's well known that they have a noticeably different view on fighting crime. 

Tony Stark has no qualms with killing criminals to achieve his goals and in the movies he states that he has "Successfully privatized world peace." I'm not aware of whether this was true in the movie but he did seem to have a huge technological advantage over the rest of the world. 

Bruce Wayne and his belief that killing makes you the same as the criminals you're fighting seems to make his fight to end crime vastly different. It seems very restricted in his efficiency because he can't outright take a life which in most cases is the quickest way to end a threat. I'd probably say that in the Iron Man universe he was much closer to the true aspect of world peace due to his companies much larger military technology presence in the world. 

What are the advantages and disadvantages of Tony's and Bruce's stances on crime?
gpt
Tony's major advantage, IMO, is that everybody knows he's Iron Man. He doesn't need a public image, he can put 100% of himself into being Iron Man. Bruce might be able to use his Bruce persona to affect social change and provide jobs to Gotham, but he'll never be running Cadmus or in charge of Earth's planetary defenses. Tony will though, he's gonna use all the power Iron Man and Tony Stark can provide him to be in charge of everything. There is no advantage to not killing your rogues. The game might be escalated, but that doesn't matter if there's no players left to game you.