If you're not constantly aware that you could be wrong and that there's important stuff that you don't know — that there are ways of knowing things that come from outside your limited experience — then you're not very intelligent, by definition.
Intelligence is humility. It's listening and paying attention. It's understanding there's stuff you don't know or understand.
Fuck the Smartest Man in the Room.
If you're not constantly aware that you could be wrong and that there's important stuff that you don't know — that there are ways of knowing things that come from outside your limited experience — then you're not very intelligent, by definition.