The Electorate Get It Wrong!

Recently, on the BBC's "Question Time", I heard Paddy Ashdown say that the electorate sometimes get it wrong. I'm sure the minority of voters in many elections think that the majority have made a mistake, and I'm sure that many leaders, especially those with the type of detailed knowledge that Paddy has, despair over the lack of insight that the general population display. The problem is, Who decides what is right and wrong? How do we check that it's wrong?And if it becomes evident that it's wrong, How do we change it?

Every democratic system needs to answer these questions and perhaps there's something to be learned from the DMAIC cycle and TQM in general, which considers customer (voter?) satisfaction as the guiding light.