[moxious]

How do we suppose that authority got so sophisticated as to know how to do this fancy indoctrination if they themselves are a product of it?

[tantivy]

They aren't. From the passage:

"That was true as well in the United States itself when it was a much poorer country after World War II and huge numbers of students were able to enter college under the GI bill – a factor in uniquely high economic growth, even putting aside the significance in improving lives."