A salutary reminder is the 1989 incident at Heathrow of BA flight B741. The cost of busting approach and landing minima to the captain was a criminal conviction, followed by the very sad loss of his life by his own hand.
Point of order about that particular incident Chronus.
AFAIK the approach and landing minima, as in AOM, weren't "bust", the court case was brought because in the CAA's opinion the approach was continued when it should not have been (localiser deviation).
As you rightly say the final outcome for the captain was tragic.