I think it is more the fault of individuals, and to an extent the institutions teaching those individuals which have a responsibility to teach about online credibility in our time. I.e. don't just copy information from Google - click the link to verify the source is legitimate and look for additional confirmations of the thing you want to report. Of course, if one "legitimate" writer or website gets something wrong, it exacerbates the problem for everyone down the line.
Maybe Google should have a warning somewhere that there information has not been vetted for accuracy?