The reason why democracy is a good thing is it forces the people in power to care about the effects their decisions have on the general public.
"Indeed, it has been said that democracy is the worst form of government except all those other forms that have been tried from time to time."
This is even more true in Westminster style Democracies where Members of Parliament can defect on decisions, or defect entirely to another party or go independent. Potentially at any time. Why? Because your local MP is supposed to act on your behalf, and you elect the one that stands for what you do. I know our present conservative government, and Prime Minister, would love to do nothing more than open the election debate and with their majority get some legislation passed. However, they're so afraid of fracturing their government that the PM has out and out said he will not reopen it.
Sadly this isn't always so, as here in Canada the NDP has a dozen or so MP's who were essentially placed as seat fillers (in Quebec), but because of a bizarre turn around those padded seats became their entire election campaign.