Are we intelligent as a country?

How intelligent are we as a country when we compare ourselves with other people. I would say, our own intelligence is acting against our favour. We are quite a mass of intelligent people. Each one of us, are smart (even shrewd), but as a nation we are quite dumb. Its like the electrons. If all of them move in one direction we have a current flowing, else maximum we can have is minor static charge.

Actually this was something I have been thinking, and lo and behold, I found Scott Adams writing about it in his blog but altogether in a different context. He says -
"... military studies done years ago where researchers compared the performances of small groups that had different compositions of intelligence. They found that the groups with the highest percentage of bright people performed the worst. Apparently all the smart people insisted they had the best ideas and nothing got done. The best performing groups were the ones where there was one smart person and the rest of the group deferred to him. Therefore, I would argue, too much intelligence ruins everything."

I don't know how real this is, but I think it definitely makes sense.