Well, my issue is that people act based on their beliefs. A father will do things for his children because he thinks he can, and thinks he should. If he reads an article in Psychology Today and doesn't see the point any more, because baboon fathers don't raise children, well, then, his behavior is likely to change.

The worst case scenario is believing incorrectly that it's okay to do wrong. Believing incorrectly that it's wrong to do something okay is not as bad; you're mistaken, but you're not destructive. The loss-averse strategy is to be very suspicious of claims that tell you "Relax, don't worry, it's all right to do X."