Your caveat is flawed and has no basis in truth.
If you're "conservative" you wish to slow or halt social change. If you're "liberal" you embrace social change. Science is the practice of turning unknowns into knowns and expanding the boundaries of the human sphere.
You can want conservatism to be about anything other than the refutation of progress but it's in the definition, man. Communists? The Joke is a book about a man trapped by a 100-year-old discredited ideology propped up by violence. By the time of the Prague Spring Marx was 80 years dead.