This weekend an attempt will be made by world leaders to redesign capitalism. A new financial architecture will be put in place. This effort will fail unless the bottom billion – those living on less than a dollar a day – are invited from the shadows and allowed to work with us in forging our brave new model.

Just a few weeks ago it was hoped that Main Street could avoid the fallout from a disgraced Wall Street. That has proved to be another case of bankers’ self-interested delusions. It is in the nature of streets to meet. The results were as predictable as they are awful. Yet, with great effort, we will recover.