Right, but much in the same way that muskets and nuclear warheads are weapons... technology has changed the calculus on how powerful the weapons we have are.
The Springfield musket has probably been responsible for roughly about as many deaths as the bombings of Hiroshima and Nagasaki; but I suppose the nuclear weapons have more shock and awe to them.
Still, suffice to say, we've been slaughtering each other quite capably despite the level of technology we've been at.