We all know confidently incorrect people. People displaying dunning-kruger. The majority of those people have low education and without someone giving them objectively true feedback on their opinions through their developmental years, they start to believe everything they think is true even without evidence.
Memorizing facts, dates, and formulas aren’t what necessarily makes someone intelligent. It’s the ability to second guess yourself and have an appropriate amount of confidence relative to your knowledge that is a sign of intelligence.
I could be wrong though.
I disagree about education being about memorization. Education is about knowledge being imparted. Testing is often about memorization, although I’d argue that’s usually only with poorly designed tests. To me, a good education is also a lot about teaching critical thinking skills.