Thank you for clarification. I also like your comparison with NBA and A-actors.
I am Mensa member which means my IQ is in top 2% of the general population of my country. Because of the membership and my active involvement, I know a lot of people with high IQ. And my conclusion is that IQ doesn't mean too much. Yes, I think that some of them are very smart, but not genius level smart. Not even close.
In my opinion, the usefulness of the IQ metric is very questionable.