Accidents and mistakes are often related to a human factor but ...
A foreign worker at a packaging machine almost lost his hand somewhere in Belgium (I was the translator!) because of a manipulation mistake.
His hand was saved, but he can't work anymore with his hand. Has kids, his wife doesn't work, can pay his mortgage anymore. Will probably get "some" money after the trial.
I saw the report of the technical expert: a safety mechanism was removed on the machine, so that he could work faster!
Blame the human!
Not the worker!
The manager (or management) who took the decision.
I am not against safety mechanisms, but indeed let me decide which safety precautions I take if I am the only possible victim, not if it affects somebody else!