Point being where is the line? How high are the stakes (bridge: say 20 human lives at any time, very important). How dangerous is it really? (10% chance of fire per year: extremely high). Then you combine those two and see if they match.

Everything has a limit. Otherwise why do you trust your compiler, your computer, your eyes, your sanity?

Be careful with a word like malpractice, and analogies that suggest blithe endangerment of human lives. It doesn’t leave a lot of room for honest engagement and suggests you either don’t understand the human mind, or the value of a human life.