An information processing system including a determination unit that acquires, on the basis of metadata added to the content, information associated with one or more pieces of material data used at the time of generation of content and generation information associated with generation of the content and determines contribution of the one or more pieces of material data to the content, and a decision unit that decides feedback to a right related person of the one or more pieces of material data according to contribution information indicating the determination and a use status of the content.