The Corporation will be Google but it doesn't have to be. (Used only as example)
Google have used their data to create an algorithm which is able to predict which answers sites and videos (YouTube) will cause which behavior change for every person that uses their services for at least once a week.
As Google usually sees their view as the best and try to apply these concepts to every user they tray to regulate population growth.
What would be the least amount of people while still enabling Google and large scale research in science to exist?