There is no such thing as a God Complex or a Superiority Complex.
Complexes are personality disorders of a particular type caused by some environmental factor during psychological development. Inferiority Complexes are the most common.
If someone thinks they are a god they are auffering delusions of grandeur.
If someone is self-absorbed and controlling they are a narcissistic megalomaniac which is common among people ID’s medically as psychopaths.
If they’re not obsessed with controll but a are still manipulative and act like they do nothing wrong they suffer from narcissistic personality disorder and thats a fancy term for being an immature child. The only known cure is to be bitch slapped by life and have their entire world they’ve built around themselves collapse into the pile of garbage that it is. Some of them commit suicide at this point but those that do come back as normal people.