It's important to note that not everyone will be able to do every job well, and some people will not be able to do some jobs at all. So while it is important that their ethics, personal drive to learn, and cooperation skills be top-notch, one has to be careful not to try to hire expert generalists, because one ends up with people who are neither true experts nor true generalists.
I think in Google's case, and I speak from an outsider's point of view, that Google tends to try to hire the experts at the expense of the generalists. Generalists, while less technically adept at any one task as experts (I was thinking of using the term specialist there), many times have more experience with communication, managing changes, and, hum, diplomacy.
Again, from the outside, Google looks like a regiment of special forces: each member individually highly competent, and together, when deployed appropriately, quite capable. But one would not expect them to be able to run an orphanage, or, to wrap up the analogy, have very good customer service.
Although, thinking of it, a regiment of special forces would be very effective at running orphanages, since the great majority of soldiers would feel very compassionate toward the children, and not many things would get in the way of them getting the resources needed to care for the kids properly. Not sure Googlers would do as well.