"Have you tried flying into a third world nation today and dragging them out of backwardness and poverty? What would make it easier in the 13th century?"

I think this is an interesting angle. How comparable are 'backward' nations today with historical nations? Obvious differences in terms of technology existing in modern third world even if the infrastructure/skills to create and maintain it don't. In that way, I suppose they're more comparable to places in the very early middle ages, when people used Roman buildings etc. that they coudn't create themselves. But I also wonder how 13th century government compares to modern governments that we'd consider 'failed states'.