Maybe it's because I was taught triage. There is a core assumption that some will die, some might die, and save the more likely to live. It's a dire philosophy, but it keeps me from agonizing over dead children or when a frail elderly dies. Human, animal, languages, everything dies.
Death is one of those essential concepts that every child should get accustomed to. There will always be wastage, in any system. It may well include me.