Bigger. Galactic. This is why the E.T. bread crumbs. We are / where (trump is helping us break away from this and be independent) a breeding planet. Cattle / Sheep. Think literally. If MK Ultra is such a big part of the economy, where are are the slaves at? Where are all the slave rejects? do they ALL get sacrificed? How would they make money burning them all for moloc? What about the 'brain drain' where are all the scientists & science jobs.
Sold as off world slaves for technology and commodities. Breed and programed to be good workers, both manual labor, and repair work /mechanical and engineering. Also usable for sexual pleasure and tastes good and works well as a food source for the higher forms of carnivorous life that don't like to eat lower vegetarian life forms like cows.