Yea, I agree, wealth can help fix many of the problems of density. Still, except for some global hotspots like HK, NYC, Tokyo, etc. there's not enough money to warrant crowding to such an extent. And in many of the global cities the problems of density are typically worst on the poorest.
Not sure -- one question is, why are all those people staying in Dhaka? I've never been there, but I would suspect that their income/standard of living, while quite horrible, might still be better compared to Bangladesh countryside?
