For whatever it’s worth, my own tentative guess would actually be that saving a life in the developing world contributes more to growth in the long run than saving a life in the developed world. Fertility in the former is much higher, and in the long run I expect growth and technological development to be increasing in global population size (at least over the ranges we can expect to see).
Is this taking more immediate existential risks into account and to what degree and how people in the developing and developed worlds affect them?
Is this taking more immediate existential risks into account and to what degree and how people in the developing and developed worlds affect them?
No.