> Just playing the cards here, but if my IQ is 155 and yours is 120. Why should I listen to you?

Off the top of my head:

- I may know a fact that you do not. Your IQ does not make you aware of things you do not know.

- I may have a relationship with someone that you do not.

- I may have past experience that you do not.

- I may have different values than you. Your higher IQ does not dictate that we should make decisions according to your values.

- I may have access to resources (money, engineering teams) that you do not.

A meta comment is: If despite your higher IQ you were unable to consider these possibilities then IQ may not be a good proxy for the kind of intelligence a business may value.