There are so many use cases where 90% correct answers are absolutely not enough.
Nobody would have much of a problem with that, if a flurry of people with vested interests wouldn't try to convince us all that that is not the case, and AI is good to go for absolutely everything.
The absurdity of this assumption is so outrageous that it becomes even hard to counter it with logic. It's just a belief-based narrative whose delivery has been highly successful so far in commanding insane investments, and as a travestee for profit-oriented workforce optimizations.
Who is actually saying that AI is always 100 percent right?
There are disclaimers everywhere.
Sure there are usecases AI can't handle, but doesn't mean it is not massively valuable. There is not single thing in the World that can handle all usecases.