In my perspective IQ only has so many consequences, due to the limitations of the method. Nowadays we know to separate different forms of intelligence and also that transferring skills between those forms can have an impact on overall ‘performance’ . That being said, it can be a good indicator for stuff but as you point out, it’s often misused as divider instead of an accelerator.

Actually, marriage is one of the founding circumstances why we actually have laws. Although it is reasonable to assume that every marriage ritual in early societies had some kind of ‘blessed be this couple’ aspect, it originated out of civil necessity (structuring inheritance) before the Jesus Club took over and changed the meaning