Sort of. When you start with the preconception that men have the societal power (and that women must be monogomous/attached to only a single man), then yes monogomy has a purpose. It allows most men to have stable relationships. The alternative is classical polygamy (which might better be referred to as polygyny, or marriage where a man has multiple wives), women with many husbands are...rarer in history.

If you drop the restriction that women are attached only to a single man, a lot of the causes for unrest go away. And indeed at that point, there's actually no real hard-learned thing you're basing the restrictions on, because it's all predicated on women being attached to at most one man.