The economist Muhhamad Yunus, founder of the Grameen Bank, speaks to the FT about why he thinks the banking crisis has given the world a chance to redesign the financial system, why profit shouldn’t always be the motivational force behind business, and how social enterprises can take some of the financial strain off governments. Produced and edited by Deborah Bonello. Filmed by Deborah Bonello and Gregory Bobillot. Less