Why would monogamy be a 'male only value'? From the perspective of biology wouldn't a man have more motive to spread his seed with multiple partners? I'm sure this is what most evo-psych theorists would argue...
Monogamy, or the one man and one woman policy, was developed over centuries because it was the
ONLY way to create a stable society which was a necessity if you had any plans of surviving the ******* winters in European nations. That social structure is why European countries and only European countries are the global superpowers they are. Prior to all the "refugees welcome" idiocy, those kingdoms had to ensure paternity if they had any hope of building strategic alliances, and because females lack the ability to think long term or sacrifice for their tribe in any way their mating stategy made that impossible.
Females seek the "strongest male" for breeding, and that really gets in the way of the tribes/kingdoms orders to marry john the scribe so he will keep printing orders for the army so that kingdom doesn't get ransacked by the horde. Stacy doesn't give a dam if the kingdom is overrun, she just wants to get knocked up by the "strongest male" even if he is the one torching her village.
John the scribe will remain loyal to the king because he isn't driven by mating with the "strongest male" he just want to mate with an availble female, but Stacy could care less who the king is so long as her primal desire for breeding is met.
The King, however can pick Stacy and she will be thrilled to serve as one of his whores because guess what? The king qualifies as the "strongest male" and it makes no difference to Stacy if the King is fucking a dozen other women also, because Stacy still gets to be with the "strongest male" even if she is just a piece of ass on the side. So our scribe John has a choice, he can accept that Stacy isn't capable of loyalty and accept it
OR he can go his own way and not waste his time trying to convince Stacy to change or control here biological drives.
Europeans came up with a way to keep everyone relatively happy by instituting marriage or the one man one woman policy known as monogamy. Men didn't get to have harems anymore, women had to stick with one guy, and that allowed you to sit in Starbucks and look at that hand held wonder we call cell phones because our man John the scribe wasn't left out and kept printing parchments for the king and his army.
Guess what happens when you get rid of the scribes?
Stacy gets raped, beaten, and then killed when she isn't young and hot anymore, the village is burned to the ground, and The king's treasures which kept every one fed are looted.
That's also known as
GAME OVER for everyone.