Earlier quoted context omitted.
Out of curiosity, are these organizations literally fighting poachers? I.e. we're saying that an elephant's life is more valuable than a human's? That's an interesting moral question.
I'll outright say it-an endangered animal's life is more valuable then a randomly selected human's. You could kill 10 or 100 humans for each of an endangered species and make no (net) difference in the ability of the human race to survive.
I think the moral takeaway is not that the lives of these people is worth less than that of an animal. It's that they are breaking knowingly and are often murderers themselves.