Something along the lines of "if it ain't broke don't fix it"

While this logic isn't best when applied to safety, that is unfortunately the way many people and companies look at safety and sometimes it takes a tragedy to get improvements.

I am a big motorsports fan, and in 1994, two drivers were killed in one weekend of Formula 1, including world champion Aryton Senna. Lots of effort went into making the sport safer after these accidents and it would be another 20 years before the next death