I think it's great that small website owners can use AdSense to monetize what they do, but that really doesn't support the claim that "Google has created more value for more people than probably any other company in history."
Even if Google take more value from people than any other company, they can still provide a portion of that value to n other people, and assuming n is larger than any other company's n, Patrick's point still holds.
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Also, it is not obvious how much much of Google's ad profit is extraction (via being the monopolistic intermediary running an auction) vs creating genuinely novel introductions between buyers and sellers.
Also, Google's value creation is not just in the money they pay to websites, it is also in their products (search, mail, etc)
They also give people free, massive, email accounts that has allowed many people to communicate, for free, with millions (billions?) of other people.