[StableAlkyne]

> The Mars Climate Orbiter is another example. While unit conversion was the scapegoat, the real cause of the crash is that when people noticed that there was a problem they were dismissed.

Challenger too. Multiple engineers warned them about the O-rings. They weren't just ignored, but were openly mocked by the NASA leadership. (https://allthatsinteresting.com/space-shuttle-challenger-dis...)

A decade later a senior engineer at NASA warned about a piece of foam striking Space Shuttle Columbia and requested they use existing military satellites to check for damage. She was ignored by NASA leadership, and following (coincidentally) a report by Boeing concluding nothing was wrong, another 7 people were killed by a piss-poor safety culture. (https://abcnews.go.com/Technology/story?id=97600&page=1)