So then...? Are you advocating a libertarian system where everyone pays for their own sewer and sidewalks?
The property being developed already pays to hook into the existing services.
The existing service needs to be upgraded, a hook into is only a very small fraction of the cost. I gave a real world example above about the water supply infrastructure that I ended up subsidizing developers for.
No, I am advocating that new developments cannot leach off of existing ones. They need to supply their complete infrastructure.