The believers I know who embrace science hold the attitude that their god created science, and that the creator's mind is unknowable. That covers any discrepancies between science and their faith. You say that if science were to contradict god's existence they could be objective about it, I say that science can neither confirm nor contradict that existence. My point is that science doesn't care whether God exists or not. Either God created gravity or nobody created gravity, gravity works either way.