Persons who believe in science have substituted Newton's laws and the periodic table for religious/spiritual principles, which just doesn't work. It seemingly gives them a framework that allows them freedom from the encumbrances of morals or ethics. But those encumbrances are part of being human, and without them these persons are just shits.
That's an awfully broad brush you're using there, Will. Are all religious persons this narrow minded? Do you see what I did there?
Quark! Quark! Beware the quantum duck!