I was raised in the Midwest, and we were brought up that if you kill it, you better eat it. You can save something like the head for a trophy, but you didn’t hunt for trophies.
It’s like the old joke they tell about raising hogs on the farm in the old days - ‘we used everything but the squeal’. That’s they way it should be. Slaughtering animals should be for the purposes of keeping people fed and clothed (at least back in the days when there were no synthetics).
Killing animals for things like ivory, for vanity and decoration and ornaments, while leaving the animal to rot, is an unacceptable travesty.
When elephants and other “African Big Game” are hunted legally, the meat is eaten by the locals ... it’s part of the deal. Bwana pays a boatload of money for the privilege of shooting the beast, the locals get a feast. And the money.