It sounds like they were trying to change something that was already working. I think small changes would have been fine as they could have fixed them slowly, but I guess they were just overconfident. The billionaires have more money than they know what to do with. Sure, they might lose some money, but it won't affect how their bottom line. Maybe that is why they think that they are always right.
As for failing, it is a part of life. I think we all grow as we fail and learn from the mistakes. The billionaires mistakes are quite costly, but I don't think it affects their bottom line much at all.
RE: The struggle to get it right