Brokeback Sheba

"What are you, the queen of Sheba?"
Although I haven't used the term recently, I certainly have said it in the past many times. But who the hell is the queen of Sheba? After a short bit of digging this morning, I found that the saying may relate to Makeda (the Queen of Sheba) and her visits with Solomon. She was probably from either Yemen or Ethiopia, and traveled 1400 miles to visit Solomon and test his knowledge and wits. She exposed him to countless mind games and tests in order to better her own knowledge and seek his teachings. She was extremely knowledge-hungry. These stories come mostly from the Bible, by the way.

So is it possible that when we say "What are you, the queen of Sheba" that we are inferring that the person is behaving as though they are smarter, swifter, etc?