Military technology doesn't necessarily mean "tech to kill". it could also be tech to save (from natural disasters, horrors induced by already-existing-weapons, etc.)
i agree that we should avoid developing tech that has the exclusive intent of killing, which is what I was trying to imply with my cute SkyNet comment.
edit to clarify: for any given military tech, one needs to consider the possible ramifications. If a given technology is deemed benign, I see no harm in developing it, even if it is for the military. on the other hand, if it has a big potential for destruction, it's not worth developing it for the military, even if it does come with the upside of enabling cool tech to be developed. autonomous killbots is a perfect example, which would probably advance the robotics field at a accelerated rate, but it provides such a huge potential for destruction that it's simply not worth it.