The much heralded "Safety Culture" across industry is very seldom about a legitimate concern for employee and contractor well-being. There are simply too many workforce contradictions as to how people are generally treated for any company to say that they really care about you. It goes along with 'people being our greatest asset' and other nonsense that sounds good but doesn't represent reality.
So why all the emphasis on safety? A minor reason is to avoid costly lawsuits that result from people being seriously injured or k–led. But even that is a relatively small concern.
The big issue around safety is that it is widely viewed as a leading indicator of performance. It is the classic canary in a coal mine. The logic is that when a company has all kinds of safety requirements (JSA, LPO, etc.), if a team still has safety incidents occurring, then they must not be focused, paying attention to detail, following company procedures, etc. And that's when major projects get into trouble with budget and schedule. Careless safety performance often signals other problems which can lead to carelessness in the execution of core business processes, so it is a warning sign of problems among a particular project team, group, etc.
This early warning indicator is not a bad thing, because if a major project is about to head south, the company needs to get out in front of the problems before they result in major unnecessary costs and delays.
But, I just always felt it was disingenuous to make out like the safety culture was all about protecting the employee. The employee may enjoy some associated benefits, but the main driver of the emphasis on safety is all about core business execution and compliance.