I have had the theory for sometime that my former profession and related emergency fields were basically fighting the effects of natural Selection. People are out there doing really dumb things, and it was the job of others to rescue them from the consequences of their actions.
I used a particular call that I responded to as an example.
It's shortly after a rain shower, and the sun is beating brightly on the pavement. A young high school aged man has been drinking (and it's about 10AM!) and was driving at a "high" rate of speed (pun intended) in a small blue Miata with bald tires, and no seat belt, going into a curve. He of course flips the car several times. SURPRIZE! He's ejected, his skull is cracked open, among other things, and brain matter is seeing the light of day for the first time, (I presume) His vitals are dropping, but we go through the program because that's what we do.
He becomes my permanent (I thought) example of how we're fighting natural selection.
Fast forward several years. I'm reading the local newspaper which has a story about a young man who is visiting schools, lecturing about drunken driving. He tells his story to the newspaper, and it's the SAME KID!
So now it's an example of why you do your job to your best ability even when it seems hopeless.