If somebody wants to buy a house without having the wiring, plumbing, roof, or anything else checked, that should be his choice. If he wants to get experts in to look them over first, he's always been free to do so.
That's especially the case with people who buy houses just for the "shell" or just for the land.
The place will be demolished anyway to make way for whatever new construction will take its place. With that will come new wiring, plumbing, etc. Who cares what state the old stuff is in.
