There's some great business accumen: call your users incompetent.
Semantic Web does rely on the data provider (webmaster) holding the goal of accurate dissemination of information above all else. Unfortunately the plain fact is that most webmasters are out there to get ahead, just like anyone else. I'm sure Google's very interested in getting things like RDF and semantic web technolgies in more popular use, but there has to be a way of getting a disinterested third party to vouch for the data provider in order for it to work.
Calling people incompetent (or just drawing attention to the fact even if it is true) isn't a great way to get this stuff moving.