Whilst I am not in the medical profession, in aviation, there's a big push for the Just Culture concept. That is, unless you've been willfully negligent or acted intentionally to break the rules then you are usually exempt from prosecution. So your event is analysed for the purpose of preventing further events. This didn't happen over night and took a big shift in culture to not just blame the pilots and for also, pilots to accept that they do make errors.
In the medical world, there's the concept of "where there's blame, there's a claim". Medical professionals are not really protected with the concept of Just Culture. Events don't appear to be investigated to learn to avoid that error/mistake, more to punish and gaol/fine the person involved. Until there's a cultural shift in the medical world that medical professionals can and will make mistakes/errors and that lawyers are circling waiting to pounce, it won't change.