Also, keep in mind, the way nomads think is completely different then humans. What you as a human consider wise and smart does not really apply to the nomads. Also before the vanilla storyline the nomads were pretty much in hibernation, they aren't really hyper advanced as a species on a purely emotional/rational level. Technologically, they have an advantage due to knowledge and artifacts from the Daam K'vosh that they have held onto. They are smart, I mean they were created by the Daam K'vosh so I am sure they were designed have a high intellectual capacity but intellect =/ wisdom.