I don't think Seth is in the Illuminati, he merely reinforces a symbol. And he wasn't trying to mind-control you, the viewer. It is more like a wink to the audience, for fun. And mind-control is relatively easy, whch is why it is effective. There is a whole sexual subculture built around a variation of it - erotic…

Illuminati hand gestures
I saw three uses of the "horns" hand gesture last night (index and pinky fingers up, other fingers curles together. Samberg did it in the monologue, Minaj did it at the end of her first song, and Meyers did it at the end of Update. In recent weeks, Robin Williams did it during What up with…