In particular IQ is not associated with better life outcomes after you have "enough", and that "enough" isn't Mensa level.
The former might be a literal genius (in the genuine unironic sense) in one field, say software engineering of astrophysics or banking or diplomacy.
The latter would be a literal genius in all four fields simultaneously.
There's no CPU that can't be wasted by bad code.
In particular IQ is not associated with better life outcomes after you have "enough", and that "enough" isn't Mensa level.