I don't blame the developers. Hell, if I owned an expensive property, I would want to maximize my return. It is the governments responsibility to provide the infrastructure for the amount of development it allows and additional people that it brings.
There seems to be a mentality that more jobs are what is in the best interest for the island. That logic only holds true if the infrastructure is in place to support first the people already there and to expand to accommodate the additional people that further development brings.
Of course some of the esteemed politicians might find other logic, a kinder word for motive, that is more personally beneficial.