You probably know this, but a lot of studies back you up. Being smarter doesn't necessarily make you more likely to be right, but it makes you a hell of a lot better at rationalizing your position and persuading others. Also, that comment about the "old guy with an inferiority complex who sneaks one really profound comment in every meeting" really hit home. We have that guy on my team too. You have to wonder what's going on when those guys are sitting in the corner and us blustery people are doing all of the talking.