Google can't be subjective, its on a freaking google subdomain. Search engines do treat subdomains as seperate new pages (with little ranking effect from the domain) it still on google.com which makes it golden, then Im sure mattcutts.com/blog and other googlers blog roll is pointed to it - its done, a page on knol will soon rank higher than a page with exact same content on wikipedia.
Per folks in the know, Google doesn't give itself any preferential treatment.
Try searching for 'search' with Google. Google itself (perhaps the best known search engine) comes in at result #20 -- at the bottom of the second page of search results.
