Safety Culture is just for show. They roll out new PR campaign about re-doing the culture every 3 odd years, and it always gets a laugh.
One of the biggest jokes is that there are Safety Standup meetings in all areas of the company, and you get totally uninvolved groups in Head Office flagellating themselves when there is a site safety incident (eg, HO clerks expressing guilt about a tradesman at site getting injured - "What should we have done better to stop this?")
Awesome. The culture is something that is constantly being worked on.