I believe in natural selection too, but considering the fact that so much wildlife is injured or killed by humans, our activities & "our" (NOT MINE EVER!) loose pets, it seems only fair to me to help alleviate suffering when I can. But hey, that's me... poor turtle!
They are not rare or endangered at all here. They just have lots of natural predators. It may survive, but you know, reptiles have it hard in the wild. Its a good thing they breed a lot of eggs!!!