They will look at the ridiculous amounts of data, come to conclusions from it and say, technically everything is fine. Then some bright spark comes along and says, but that just doesn't make sense. The data overrules them, and most of the time the data is correct, until they push the technology too far to meet deadlines or to increase revenue, by which time the bright spark has been shut up, and it goes with a vengeance.
Heard a story about the Shuttle disaster, one of the engineers said something about physically standing in their way to stop them launching it he was so certain it would crash, obviously told to shut up and the rest is history. These people are preventative, it slows growth so no-one likes them but it also provides a sustainable foundation when things go wrong. You need perfection launching a rocket, it has to reach an escape velocity of 7miles per second, just because it's technically perfect doesn't mean that matey working on it didn't do something stupid!
The more efficient an operation the more chance it will experience a fat-tail event. If you have a high efficiency company and their employees start to lose efficiency then they become distracted, and you end up with a concentrated set of fat-tail events. The question is, are Musk's companies starting such a trend because you can know they will not have the 'human' processes in place to offset them!