he didn't say that it was useless to be intelligent, he said it was useless to attempt to quantify and compare intelligence, and i'd have to agree with him.
see that makes more sense now. I agree with it too, it IS useless to attempt to quantify and compare intelligence, BUT, it is really fun.
For some people anyway, like me. I enjoy the numerical aspect of it, and comparison is enjoyable
But yes, absolutely right you are, obviously CEO is intelligent hardworking person, and garbage man most likely not, the fact is, life goes on for both of them, whether you know and compare their IQ's or not.