What is the use of technology if it has destroyed its creators? (i.e. discuss the main dichotomy underlining "There Will Come Soft Rains.")

I think that this becomes the primary issue in the short
story.  I don't think that Bradbury blames technology for killing off the people. 
Rather, he constructs a vision of a "morally neutral" technological setting.  Human
beings construct the technological means to do amazing things.  Self- cleaning of a
house, destruction of millions, and an automated presence that expands and astounds the
mind is the paradigm of technology.  Yet, like the fact that the story transpires with
no people, Bradbury is suggesting that technology still requires human beings to provide
the affect that is sorely missing.  Technology has not contributed to the wiping out of
millions and the destruction present.  These are realities of human beings, with
technology being the means by which these ends have been accomplished.  Technology has
been the arena where these individuals have been able to exercise all that was sought. 
It was individual human beings that detonated the nuclear explosion that wiped out life
in Allendale, and it was technology that created the home that takes care of its
inhabitants.  I think that Bradbury is not suggesting that technology is to be feared as
much as human beings' will and destructive ends.