A synonym for safety is care. Luck runs two ways. If care is lacking, one hopes for good luck, and banks a greater net profit. If one takes care, there is less money in the bag.
Remember the catch phrase, "With service to London, Paris, and Johannesburg."
It is a service industry. Such a concept is open to interpretation in its pursuit.
When BA038 crumpled, there was mystery surrounding the problem. Prior to a found cause, United discovered a paper problem with fire bottle 5 in the hold of some of their 777 fleet. They ordered an immediate inspection (of all 88 aircraft) including cancellation of several revenue flights. The inspection was mundane, and turned out to be deferrable.
There are other examples with other airlines, but a pattern of care develops, and some people notice....