So I'll rephrase: In the context of accomplishing a certain task, the accuracy of some information is crucial and the accuracy of other information is not. For instance, if I'm looking to buy a book about Andrea's experience, I care that she's a woman, that she lives in a western country similar to my own. It doesn't particularly matter to me, in this context, what she looks like, so if I see the wrong photo - it's no big deal.
Obviously, the truth matters. And Google can't know what context you care about. But the only way to never be wrong is to never show anything at all. In other words, if you try to be useful and aggregate and show any information at all, you're going to be wrong here and there.
Yes, Google should continue working and improving and getting to as high an accuracy as possible, but it's never going to be 100%.