Sergey is brilliant but it's really the lightsaber that is super voting shares that make him uniquely empowered to slash through Google's immense bureaucracy.
Brin wasn’t bothered to wield any of that power to try to arrest the decline in Google’s search quality. He wasn’t bothered to direct the Chrome team to support MathML, or to bring back Google Reader, or do anything about a hundred small insults like, say, the deletion of YouTube comments with URLs to keep the rubes inside the casino. But he was able and willing to come back and wield his clout because he was bored and wanted to play with AI. As someone who’s old enough to remember how much leeway Google used to get from governments and the public at large on the basis that Page and Brin were nice young men who could be relied on to be responsible stewards it’s a little galling. Don’t give Mr. Brin any belly-rubs until he tells us when Reader is coming back.
I think being the founder of Google gives him more political capital at Google than anything on paper. As a controlling member of the board there's a variety of things he can do with that hammer, but just simply being who he is, not even just on the org chart, has got to be worth way more.