I'm willing to bet that you have taken many unnecessary car trips in your life. By doing so you have increased the risk to other drivers, cyclists, and pedestrians of suffering a fatal accident. Sure, it's a very small increase, but surely that outweighs your selfish desire to visit your friends or go to a movie.

Casually weighing human life against economic cost is not acceptable in what we might call a civilized society.

It's not only acceptable, it's essential in order to make reasonable decisions.

Deaths caused by the regular flu are deeply regrettable and should be prevented as much as possible.

So, quarantines every winter?