Which is funny because in a universe composed only of matter in motion, moralizing seems a bit silly, doesn't it?
You are ascribing things to Rand that she did not say. Your thought is more attributable to Nietzsche or the biodeterminists (power is all that matters). There are some advocates if reason who confine themselves to the material world and ignore consciousness, but I would argue that while they claim reason, their very ignorance of abstract forces like consciousness and society cripple their reasoning ability. They are the other side of the same coin on which one finds anti-materialists -- equally ignorant of the full nature of human culture.