Also, the problem here mostly seems to be not money, but government. As the article states “Nobody here believes in the greater good […] There is no trust”. Short-term, how much more expensive would it be to get clean water from the rivers flowing into Jakarta, instead of from those illegal wells?
Less cheap to transport (e.g. bricks) or less durable (e.g. fruit) goods move less easily, and labor moves least easily.
Consequently, it is way cheaper in poorer countries to have personnel, to pay people for repairing stuff, etc.
(I think I misread your comment and others might too, so I'm leaving this here)
But if your point is that Indonesia is not to be overlooked, then that is quite true.
>"Sadly Indonesia doesn't have the near limitless resources of its old colonial owner that keeps Amsterdam/Holland from sinking"
When in fact fact it does have the resources to build a Delta Works-like system similar to the Netherlands.