That idea is disturbingly similar to Nineteen Eighty Four (of course, any similarity by anything to Nineteen Eighty Four is disturbing, regardless of the degree of similarity). It's brilliant.

For so long all our humans have been mostly nice people in Golden Ages of peace. Any unrest or evil was to do with minor groups and thus unimportant. For once the humans in Dungeon Keepers will rival the Keepers themselves in cunning and thirst for power, making them properly formidable opponents.