I lived in a fishing village once on a Pacific Island. Those people were still using ancestral fishing techniques and did a wonderful job. I mean they caught fish by hand and rock. They ate the fish with their hands and drank collected rainwater better than I could do. In my opininion the only thing wrong was that they were cast aside by modern tourism (du - western culture). These people lived on the islands form much longer than those resorts.
I'm a Christian. Personally I don't care what an evangelist says if there saying we should introduce these folks to medicine, banana republic, and Wal Mart (collosal impervious surface). That is ignorance to me. Evangelism is about spreading the word of God not our culture, not our medicine, not our way of life, not our clothes, not our disease, not our food, not our population explosion.
Remove those people from the wild is removing a cultural and natural resource from the wild so that we can teach them to over exploit. I'm sure we could learn better things from them like how to be more sustainable. In my opinion protecting their environment and way of life from exploitation is not ignoring them or rendering them to a shortened life. It is respecting them.