We never invest effort in things that provide the most value; we invest in what we're the most emotional about. The number of people killed in 9/11 and every plane hijacking is dwarfed by any single year of deaths due to either vehicle accidents or gun shootings. But we do nothing about either of those things, and instead spend $180B on TSA, to save zero lives. We then roll back things like vaccine mandates, to kill more people (mostly kids).
That’s a very uncharitable way to interpret public opinion. A more charitable way is that people have different ethical intuitions. Some of us lean more utilitarian than others, and almost no one is a pure utilitarian. It isn’t merely a matter of being more emotional; people very reasonably have different views on this stuff.