Many works of science fiction from the fifties suggested that through technological innovation humanity would overcome its tendencies toward violence and war. Neuromancer is written as a countermeasure to this idea. Violence runs red in these futuristic streets. In Chiba City, violence is so rampant that no one seems to care anymore. Assassins and ninjas kill without remorse or second thought. The Panther Moderns create a riot just so Case and Molly can steal a ROM construct. Even computer systems can cause brain death if you aren't careful. It's as if the book is saying, "The more things change, the more they stay the same." Right?