This misses the point. Hydroelectric dams have a big negative cost component in human lives, because they protect a significant amount of them every single time

This misses the point. Hydroelectric dams have a big negative cost component in human lives, because they protect a significant amount of them every single time there are flooding conditions (e.g. heavy rain) and the dam doesn't fail (which is obviously the huge majority of cases). Nuclear plants, on the other hand, protect a negligible amount of lives during floods, because they make for impractical shelters :P In my expeience, comparison in "lethality" between hydroelectricity and nuclear power are only ever made by people that are uninformed on flood management and/or want to push an agenda, and I wanted to provide a counterpoint to that.