Being aware of bias is in no way the same as being unaffected by it. In fact you can imagine the possibility where being aware of a bias allows one to believe that they are unable to be affected by it and thus pay less attention to whether their thinking is flawed.
So i guess "paying more attention" to flawed thinking is not part of the "smart" equation? See where this leads? I'll be direct: the concept of "smart" is vague and has different meanings to different people, and different measures, so to say "smart" people are like this or like that doesn't make sense.