By that criterion though, people like Edsger Dijkstra or Stephen Hawking would not be considered truly intelligent people. I think many would consider such a definition bizarre.
Citation may be needed for both of our statements, because my recollection from reading Hawking's book and other things is that he had a sense of humility about things he didn't understand, just like any good scientist must lest they lead to incorrect conclusions.
Why would the people you mentioned be considered unintelligent by that criteria? Are you suggesting that they are not humbled when faced with the fact that the world will continue rotating without them?