It's just two vastly different forms of life. Hideauze don't need civilization any more than a tiger needs civilization or anything external to be the most perfect killing machine on land. However, without civilization humans are nothing but weak prey, incapable of achieving anything much. I didn't take Chamber's word to mean machine caliber as a weapon is the pinnacle of civilization, but it's possibly the most advanced piece of any machinery humans have created, and that's a sum of the capability of the civilization. Considering they are locked in an eternal war, it makes sense their best efforts are invested in weapons. The speech was biased, but why wouldn't it be? Chamber has a purpose, and it's still unclear if it can alter that purpose like a human can.