Notice that I gave as an example the
early days of Google. In those days, it was stacked with 99th percentilers working full tilt: Sergey and Larry, Jeff Dean and Sanjay Ghemawat, Luiz André Barroso, Urs Hölzle, Amit Singhal, etc.
Of course it was eventually taken over by product managers, bureaucratic bloat, and WLB maxxers. I think my observation only applies to a company in its ascendance. As it matures, the 50th percentilers and the MBAs take over. And it slowly declines. Less slowly if it has achieved a monopoly (search, in the Google case).