Earlier quoted context omitted.
Infrastructure is expensive. It costs lots of resources and human labor and intricate planning (most SE Asia cities are not looking like anything there was planned). Most countries on the planet simply cannot afford good infrastructure. I'm almost sure there's not even enough resources like energy and metals to create a good infrastructure in every country on Earth.
> I'm almost sure there's not even enough resources like energy and metals to create a good infrastructure in every country As better public transport infrastructure vastly reduces the number of cars, and centralizes the requirement for both material and energy, I doubt that is the case. Buses and trains need far less of both than the population-equivalent number of cars/motorcycles.
It's evident if you live for several months in almost any SEA city, that they lack even basic infrastructure. I'm sure it's not only matter of negligence, they simply cannot afford many things that people in developed countries see as granted.