Agence France-Presse: Corporate responsibility rather than profit took centre stage in Davos on Friday, as the annual get-together of business chiefs turned its attention to issues of health, aid and development. Rock star activist Bono, billionaire philanthropist Bill Gates and UN chief Ban Ki-moon steered the conversation away from the global economy and geopolitics, towards issues such as malaria eradication, poverty alleviation and climate change. Ban challenged delegates to renew a commitment …