The Aztecs didn't waste bodies and leave them rotting in the desert. When they killed someone they ate them and used every part of the body. The Aztec body count was in the hundreds of thousands, we however in a mere 150 years have managed to kill two hundred million people in various conflicts. The Aztecs killed for food, we kill for the fuck of it.
Bla bla bla 40,000 virgins. How about 300,000 dead in Iraq in less than 10 years.
Yes, a bunch of mushroom and morning glory eating cannibals are still more civilized than we are.