And often that there's warranties in place - that is, if it does fail under normal operation, you can sue them and get millions. Which won't buy your loved one back but it's a strong deterrent for the company to not try and palm off dysfunctional shit.

that doesnt help if youre dead or severly injured...besides how many of these cases actually go to court and win?

It doesn't fix those things, but it does help deal with them, at least where the long-term financial impacts are concerned.

You're not going to squeeze a lifetime worth of lost salary out of a random Redditor who told you how to tweak your insulin pump.