People came out on the streets to defeat the poll tax, protesting and refusing to pay it. It was binned. They refused to be led along by the politicians. Equally, protests at the Iraq /Afghanistan wars are ongoing, and are beginning to show sign of success, but even if the success is slow in coming, it shows that there are still a lot of people who will not just go along with the politicians.
But, we all sign up for democracy, and that can often take us into situations we didn't envisage when casting the vote.