That was my perspective as well before, but what I never paid much attention to is the fact that every person is part of a network of relationships which gets a

That was my perspective as well before, but what I never paid much attention to is the fact that every person is part of a network of relationships which gets affected by that person's death. The importance of that I think is clear with respect to the dynamics for terrorism and war. People who experience their loved ones dying easily get vengeful and radicalized. If I lost somebody dear to me, I don't think the execution of the killer that my increased satisfaction from this would likely pale compared to the sadness inflicted on those who cared about the killer. This is a fundamental thing in human psychology. We react more to losses than gains. If e.g. the boss takes money from you and gives to me as a bonus, then my joy from this will be significantly less, than the dissatisfaction you will feel from this loss. The sum is lesser than its parts so to speak ;-)