Over-confidence in a 3 lb brain

I'm thinking that an awful lot of people exert far more confidence in the three-pound brain that sits between their ears than they really should. Watching videos such as Powers Of 10 or The Awe Factor of God completely blows my mind.

Discovering how incredibly vast the universe is makes me immediately think how incredibly small we are. The earth isn't even a fleck of dust. We are nothing. It really gives a stark reminder of our insignificance and smallness.

If science has lead to these sorts of discoveries, why hasn't it lead to a greater humility? Why do you get Richard Dawkins trying to convince the world God doesn't exist when the vastness and the age of the universe is completely beyond comprehension? Makes me think that on some levels, the smarter you get, the stupider you get.