You are right, this corruption case was not about regulations but, imo, that's just a matter or price and time.
A long time ago I read about some horrible explosion in a sugar refinery and was amazed how so many industries have had lethal cases like that which can be traced directly to greed (not negligence, not an accident, not a bad mix of circumstances, just greed)
Since then I have all but convinced myself that every industry out there have had a similar example (usually more than one) which is why I have zero tolerance for the notion that industry can regulate itself. Every single time a politician talks about deregulation for efficiency or job creation, what they really mean is they are taking "donations" and couldn't care less that people get hurt