If one hasn't worked in these places, one lacks the perspective to provide an informed criticism. If it helps one recognize a shortcoming in their world-model, I will share that being known to exist grants superior desired proximate results than being left alone.
I'm not trying to convince anyone here, merely broadcasting information that I am privy to which I suspect most here may not be.
In my youth I was a very zealous Christian, and went on mission trips to Peru, South Africa, Honduras, and Mexico.
When I reflect back on those times I feel ashamed of my assumptions about the people we were trying to "save". I am now hyper-sensitive to the idea that some ways of living are qualitatively "better" than others.
Certainly in South Africa, around Johannesburg the poverty I witnessed in their "townships" was truly painful, but that itself was caused by colonialism, and rough history of apartheid.
The dead sibling comment to yours does make a point, we shouldn't assume these cultures (OP cultures - not mapped, not tracked) don't want to adopt some of modernity's benefits, but we also shouldn't assume that they do.
Being an atheist, I never proselytized. My job was improving access to TB care. My girlfriend (at the time)'s job was access to banking for the poor in India. One of my close friends' worked to map poor communities so that they were visible to the instrument of the state so that the need for services was apparent. It was all very outcomes-oriented and the outcomes weren't org outcomes but outcomes for the people served. The guys we each worked for ran their stuff well.
There was no religious component to this. Only good outcomes have come from this (and the other two are still doing it). I do not regret doing it except that I clearly have far greater comparative advantage making money and giving it away than doing this myself. Also I enjoy writing code more.
I'm not trying to convince anyone here, merely broadcasting information that I am privy to which I suspect most here may not be.