You mean a powerful psychological effect like.... perhaps... accidentally creating a galaxy spanning cult in your honor.
It is said the God Emperor has guided humanity from the earliest days, tactically appearing only when necessary and then in whichever form suited him.
I wonder why none posted this masterpiece. Anyway if HE was the emperor and Bobby Kotick was a archtraitor then I would be loyalist for sure. (roleplay mode on) But I remember too well this glorious rebellion. (roleplay mode off).