There's also just a lot of "No, no, no, I kill the bus driver". A sort of "Greater Fool theory" but for genocide, everybody else is a useful idiot who, having supported your rise, is then next in line to be sacrificed, never for a moment remembering that even if you are the only person to have thought of this - which is unlikely - everybody who understands how this actually works will have been together against you from the outset.