The evolutionist, since he isn't a complete moron, would not confuse a scientific law with a moral constraint. The Law of Universal Gravitation says that bodies will fall towards the enter of the earth. Does that mean it's OK to throw your grandmother downstairs?
On the other hand, a Christian might well justify rape and pillage as a Divine Command. As in, for example, Numbers 31:7-18.
No. But throwing your grandmother upstairs violates the Law of Gravity