Personal responsibility for the supervisors? Now there is an interesting idea!
Tom Peters, the author of "In Search of Excellence," as well as other management books, has documented that, when companies consider safety records as part of a manager's performance review, the number and severity of accidents drops precipitiously. Ironically, American industry had been moving in this direction when OSHA was invented- returning us to a focus on materials and practices- and resulted in a dramatic increase in injuries! :-(
When the focus is strictly on "production," everything else, including safety, will suffer.