The above-normal extends from the mildly interesting to the truly unbelievable. Perhaps I'm seduced by the latter and you want to consider the former. I'd agree that google and like companies hire above-normal. I still content that the profile of ability is probably within spec of normal, even if they aim high.
I hasten to add, I doubt I'd pass a google interview. Haven't tried, don't expect to be tapped. And, I know many fine current and ex- google people and they are smart. The thing is, they all show remarkably high verbal skills, men and women both. Which makes me (bias alert: particular to general warning) wary of a measure which implies there is a detectable skew. These people, display both abilities.