Frank Zappa once said, (paraphrased) "There will never be a nuclear holocaust. There's too much real estate involved." There's some truth in that flippant remark. Humans value their history and heritage, their man-made achievements, their holy sites and objects, their cultural and historic treasures.
Allow me to pose a question. If Cairo, Istanbul, or Damascus were "nuked," which would you regret more, the loss of lives or the loss of historic objects in those cities? I know my answer. Why do you think the neutron bomb was developed? And why do you think it scared the bejeezus out of people? I think it is noble that your heart bleeds for the loss of life during war, but it's par for the course. Actually, they say death even comes upon people during times of peace.