Are you talking about lost Amazon tribes? Most places I have visited people have seen real quality of life improvements by having clean water, refrigeration, sewage systems and access to the internet.
2. Always use an industrialized western perspective as a synonym for what is unequivocally good, without any inspection or consideration. Disregard anything else.
3. Worship at the altar of the information technology industry
This is a good point. And, most of those require civil engineers to accomplish. It's very hard to do that if you don't have a writing system, and, hence, literacy. Pre-literate societies struggle to build up scientific and mathematical knowledge because all knowledge transfer is oral.
Yeah yeah, but it’s so romantic that they use bamboo sticks for hunting and killing each other with poisoned arrows while dying of worm infections and shit