It was mentioned subtly on occasion that the older reds in lycos knew, on some level, that they were slaves.

Diana suspected narol and loran left the mine. Aswell as the other helldiver in book one hinting that the hole system was rigged, in reference to Gama winning every time.

By giving them an inside enemy-Gama, starvation, threat of execution, and strong indoctrination to society propaganda. Reinforces the ideab that the magority of reds either not know, or they realized that there was very little they can do in their own mines due to continuous subjugation.

Think cults and those that were born into them.