And I don't just mean "oh, my little work mistake is actually nothing compared to a fiery crash that kills people," either. The reason commercial flight is so many orders of magnitude safer than any other form of transportation is because after every accident and incident, an independent regulatory body investigated it with the express goal of figuring out exactly what happened, why, and how to prevent the same thing from ever happening again—not to root out which person deserved the blame or the liability.

It's a simple, shockingly effective idea. It's also worlds away from how most people approach their own mistakes and the mistakes of others.

Because it’s never just one person’s fault. And even when it is, it still isn’t. 

The sharpest, best-trained pilots make worse decisions when they're tired or sick or stressed out, so there's two of them. The most dedicated and experienced air traffic controllers garble an instruction over the radio sometimes, so pilots are trained to always repeat clearances back to catch misunderstandings quickly. The best and brightest maintenance mechanic still overlooks a screw or misconnects a wire once or twice in her career, so aircraft systems are built with two or three or four layers of redundancy, and pilots are exhaustively trained to deal with failures safely. 

Everyone eventually has a bad day. Every component breaks down. Every computer gets a bad a Windows update and spirals into a reboot doom loop. If it’s possible for one person’s mistake to domino into a mushroom cloud of a fuckup, then that task is too critical to be one person's sole responsibility. The accident sequence starts with the design of the system—so how do you improve the system to keep it from happening again?

oh yeah. The “modern commercial aviation is the safest form of transport” thing only applies to planes, btw. A helicopter is a beautiful metal horse that wants to break its legs and die so so so badly