I guess the argument is that if google could make the perfect search result, ad spending would, by definition either be exploitative of the advertiser by provid

I guess the argument is that if google could make the perfect search result, ad spending would, by definition either be exploitative of the advertiser by providing no change, or providing value by changing the results from perfection. In reality, Google is not perfect and you can argue that ads do provide value by promoting relevant content, even if its gameable by our capitalist system.