Satellite network for all the people in the world is a rich white guy problem -- it may not be profitable, but damn I am going to have satellites!
What about these guys?
So you think digging tens of millions of miles of fiber trenches to bring gigabit internet to everyone is a more capex efficient solution than a few hundred nano-satellites in LEO blanketing the earth with connectivity? It will be low bandwidth but enough for farmers (what most people in the world do) to check weather, crop yield predictions, and market spot prices, or do remote banking from their village, or check medical information.