Dynamite did save lives, as it allowed for much more effective and progressive manipulation of terrain, amongst its other applications. I didn't mean to say that dynamite isn't a tool of peace. Rather, I mean to say that people can and have caused much controversy over the distribution of Nobel Prizes because they did not agree with its validity. I'm pretty sure Nobel knew the destructive capabilities of his invention. His advocacy of peace then, I interpret, isn't focused on the concrete inventions and establishments laureates have created, but its intended application and example of progress toward the ideals the prizes stand for.