> In what way does it show ineffectiveness of surveys?
Surveys are often manipulated. IIRC, there was a 'survey' a while back with regards to whether or not people wanted Congress to force ala carte pricing on cable providers. The question was something like "Would you like your cable provider to provide you with a better, wider selection of channels?" The majority answered yes. This was touted as, "Survey says that taxpayers don't want ala carte cable," by vested interests.
Take this with a grain of salt, because my memory on this is a little fuzzy, but even as a parable, I think it conveys the point I'm trying to make.