Open Editing Model Versus Rhetoric (Score 1)

Recently Google has come under fire for changing the result of searches for specific countries. Since the release of GoogleAds, Google changes the results for searches in order to support their advertising business model. Google has also "punished" organizations that try to take advantage of this model in a manner that is not "traditional searching", for cases where GoogleAds were used, and even where they were not.

Given this context, with a recent slashdot article describing how various politicians have had their constituents edit their respective wiki topics, do you see a model for the wiki to inhibit this kind of abuse, without removing the means of the wiki which allows for open editing?

Thanks! ~tim