Who, then, would the Antichrist be?
From a simpler, more practical perspective, it seems to me that there is only one world—a common home for us all, more or less—and there is no guarantee (nor does happen in reality) that those who have great culture, eloquence, wealth, and knowledge are also intellectually honest, or, to put it more simply, of sound mind, regardless of the position or level they may have reached.
A final quote—I’m afraid I don’t recall the author, -mea culpa-, goes: "There is nothing more dangerous than a great idea in a small mind."