A diverse society is by definition, a society that has a range of different things. How important is it? Not nearly as important as a society of competency. A society of competency could specialize in just a few areas but be extremely capable in those areas and be incredibly productive. It would export the products that it creates so efficiently and so well, and trade for products it doesn’t create but needs. Because the products it makes would be among the best in the world, they could sell them for high prices and become very wealthy. That would allow them to be able to afford all the other products they need but don’t make. Compare that a “diverse society.” It isn’t necessarily competent but it’s very diverse. It makes all sort of products nobody wants because they’re poorly made. It has trouble exporting its vast array of products because no country wants to buy any of them! Which society do you find more appealing?