I don't think the society faild at anything. As a society we decided to put life above anything else, and doctors do anything to keep the infants alive, even if they are empty body shells born without a brain.
We decided to keep them alive by medications, therapy and surgery, just for the sake of their bilogical functions. I can not say that what Ashleys parents did is wrong, and in many ways I agree with them, and their action is purly pragmatical and for the childs sake. But I cannot shake of the feeling, that Ashleys body is treated like an object, a thing, striped from its natural aspects of a biological being with its rights.