Even if people don't have fully integrated beliefs in destructive policies, their beliefs can be integrated enough to lead to destructive behavior.

The Muslims who throw acid in their daughters' faces may not have an absolute preference for disfigured daughters, but they may prefer disfigured daughters over being attacked by their neighbors for permitting their daughters more freedom than is locally acceptable-- or prefer to not be attacked by the imagined opinions (of other Muslims and/or of Allah) which they're carrying in their minds.

Also, even though it may not be a terminal value, I'd say there are plenty of people who take pleasure in hurting people, and more who take pleasure in seeing other people hurt.