What you wrote is a good essay regarding definitions about platforms & structures to promote a "safety culture" however, in my opinion it when it comes to matters concerning operational practices in the context of pilotage, I think the culture exists no further than the definitions section of manual (because it is a requirement). If in the findings of a accident report you see the words like "the company had a poor safety culture", what does that really mean? Was the "safety culture" poor or was the reduction in operational practices that majorly contributed to the accident the result of one individual empowered to make those changes (aka the "new person in charge"). I think on many occasions investigative findings that use words like "a lack of safety culture" is an obfuscation to conceal the truth.