[rab] Every day out of work for someone who is able to work is a day's labour lost forever. Labour is the most perishable commodity there is. The fewer people who work, the less stuff is created. So yes, having people out of work makes us all poorer. Of course, I'm taking the view that the more stuff we have (including intangibles such as art and clean streets) the better; someone who takes the opposite view, that the less stuff we have the better, like some extreme environmentalists, would presumably want to see unemployment rise as high as possible, and will be celebrating that a manufacturer of evil machines has finally gone out of business.
[Darren] Assuming you meant me, yes, there are unproductive jobs, such as, according to the stories, a lot of the management jobs at Rover. Paying people a fat salary to do nothing does nobody any good, including the people paid the fat salary.