Are you suggesting the search algorithm is tailored to detect pro-google content and promote it, or that someone manually altered the rankings for these pages? Both are wildly unlikely. I think the double standard suggested is that these pages shouldn't exist at all, not that anything is biased in their favour.
What I am saying, not suggesting, is that there is the appearance of a double standard irrespective of Google's intent or actions.
If in fact (and I am not saying that it is actually the case), Google has a double standard, there is little likelihood that these pages were manually promoted since the search phrase is rather obscure.