One hypothesis is that totalitarianism is a lot cheaper than a bazillion spies who are difficult to keep track of:
* Some 1,271 government organizations and 1,931 private companies work on programs related to counterterrorism, homeland security and intelligence in about 10,000 locations across the United States.(The Homeland: Big Brother Plutonomy). Noam Chomsky, in the video below, explains that only pseudo-democracies need propaganda to control the "public mind" (the cultural amygdala - Hypothesis: The Cultural Amygdala, 2, 3, 4).
* An estimated 854,000 people, nearly 1.5 times as many people as live in Washington, D.C., hold top-secret security clearances.
To the contrary, Totalitarian States don't need propaganda, they tell you what to do and you do it or else.
Get my drift?
Here is a video where Noam lays out some of the dynamics involved.
Feeling the Bern circa 1985:
The previous post in this series is here.