Well if that would be so that would be great. But usually you get a some sob story about how fantastic the heroes of search engine programming are stemming themselves against the evil world of spammers ... how their systems are not compromised by adwords or adsense and so on. Fair enough if you get that story from Google, but the endless defense of the holy Google start to grate more and more.
When I worked ten years ago at an ISP we started with 3 computers and pizza bozes everywhere. 1 year later 30 employees server room secretary and so on and so on.
Companies get bigger and change.. Do no evil is no more.. bog standard multinational that will crush you when they get their profits elsewhere.