One thing I think about is that we make servers with ECC RAM because normal RAM has cosmic rays cause random corruption IIRC once every 100 days on average.

It's overkill for desktops because you don't care about 3 bit flips every year if you only have 1 machine as opposed to managing thousands in a datacenter, and you regularly restart your stuff anyway.

And then you have people who have to deal with hundreds of people who never restart their stuff.

And companies ship stuff with memory leaks all the time on top of this. US nuclear guidance systems have them, but they are not expected to have to be on constantly for weeks on end like the laptop of Joan from Marketing.