Control by Fear?

Towering for all to see - Shinra
Initially is all we know - Shinra
But an expert testifies - Rufus
To Hypnos' dominion - Fear to control/mind wash people

edit: nvm, not the end of the game.

Only people I can think of besides him and Hojo as experts are the Turks, Heidegger and Scarlet, but they don't really link to Hypnos dominion.