In snake wranglers, each episode is about a different species with different experts. None of the episodes I've watched have the destroyed a snake. Actually one episode was quite the opposite. A researcher in Africa showed indiginous people that collecting the snakes and their venom is more profitable and doesn't diminish the population like the skin trade would, thus making a longterm and even permanent source of income for the villagers. Now there are around 80 liscenced collectors (who are villagers) that go collect cobras, taipans and other venomous species for the production of anti-venin.