I only will say:
Let's take 60 as a possible number of children for the MC (27 potential pregnant women could give a higher number).
Let's take 30 sons and have 25 reach adulthood being heterosexual and capable of forming their own harem.
If they come out as active as the MC, in the next generation there are 625 boys out of a total of 1,500 grandchildren. Expansion of the dormitory franchise nationwide.
15,625 boys in the next generation (37,500 great-grandchildren). Not enough colleges in the U.S. and expand internationally. More than half of the world's universities have a Marks Dorm.
390,625 children in the fourth generation (937,500 great-great-grandchildren). They take up residence in Wyoming and win statewide elections. First Marks Governor. Incest is legalized. There are not enough universities in the world for everyone to have their own Dorm.
With not enough Dorms, the number of children from here on would surely decrease. But in two or three more generations, distributing the family correctly, every state would have a Marks Governor. And even a POTUS.
And I have not yet taken into account the offspring coming from the family females.