That's blatantly incorrect. The radical majority of human ventures center around improving the quality of life for humans on the planet. An extremely small percentage of human ventures are focused on finding new ways to kill (less than 1%). US defense spending for example - most of which goes to human soldier expenses for pay / benefits / veterans etc - is merely 3% of US GDP. The actual amount of that 3% that goes into figuring out new ways to kill, is less than Google's revenue. In other words, you missed by greater than a factor of 100x (I'd guess greater than 1000x) in your estimation regarding how much effort/money/time humans as a whole are putting into killing each other.