And there is no necessity. We have accountants.
Also, how many accountants do you know that are truly happy with their work? I'd like to think many of them would love to do something other than crunch numbers all day.
We're far removed from "we've sold all the computers the world can buy" (back from when computers were the size of a building).
This is a disingenuous argument. The web and email were basically instant hits and people realized it. Similar story for home computing once the computing power caught up.
Lots of techies are tech-optimists ("tech always improves quickly").
Lots of people also have dollar signs in their eyes (or related, such as increased visibility and scope).
Hard to tell which is which.
And it's a lot more likely that LLMs can't be changed to become unreliable, it's just how they work. So we would need more basic research, that doesn't grow on trees and for which the timelines are basically open ended. Maybe tomorrow, maybe right after cold fusion hits mass adoption.