I think a lot of the basic foundations of society would change.
First the world would become a matriarchy. Fatherhood would disappear and masculinity would be taught to boys by extended family members like uncles. Speaking of extended family, that would become the new normal. The nuclear family would cease to exist and be replaced by tight knit collections of extended families of grandparents, aunts, uncles and cousins.
However as much as things change they will still stay the same. In these family groups men will be valued for their abilities as a provider. Most women will prefer to have only 1 or 2 female children but multiple male children in order to have multiple sources of income for the family. Women would still be valued for their reproductive abilities as it is only women that can continue on the family.
Men would most likely stop entering into relationships on average. The average male would spend a lot of time fucking in their teens and twenties fucking, then in their 30s and 40s they would slow down to only a few times a week. Each man would end up with thousands of partners during his lifetime. The ugliest man would have a few hundred.
More to come as I think of it.