But you also have a tiny mass produced machine that is life and death for people. Insuring quality is expensive and the cost of mistakes is extreme.

If you want cheaper medicine you have to also have cheaper mistakes and there aren't many people arguing equally loud for both. (Just one issue of many)

Higher numbers for the previous two will increase cost and death to people who can no longer afford the treatment.

"Least likely" means infinite quality control and is not possible. Failure rate is not zero, you have to pick finite regulatory requirements and financial consequences for failure.

You have to assign a dollar amount to a human life. It is uncomfortable for many people to think big picture thoughts but you're contently using things made by people who have to.