I would hardly classify Adolf Hitler as some highly-intelligent person, or top-rate intellectuals (remember, Hitler despised intellectuals, since he viewed them as being left-leaning, socially liberal types who made up the SPD or KPD left-wing parties he cracked down on within his first two years in office). If there were any true intellectuals, master, highly-skilled manipulators who could cleverly and skillfully maneuver power and be capable to craft the Nazis messages idealogically, and then also push it through, either pragmatically or forcefully, then they would be Joseph Goerrbels, Herman Goerring, and to a certain extent, Heinrich Himmler, and his deputy, Reinhardt Heinrich. Goerring was actually the original founder and leader of the SS, and Gestapo, before he ceded those responsibilities away to run the German Luftwaffe. Goerbels, before the rise of the Nazis and Hitler, came from a wealthy, influential family, but was disliked by his siblings and school friends for his often-harsh criticism and cutting remarks. He flirted with Marxism in his youth and one of his closest friends was a Communist and his long-boiling, deep-seated hatred of Jews, Slavic-speaking minorities, as well as his own German nationalism, and how it tied into most Germans' dislike and opposition to the terms of the Versailles Treaty kind of intensified after he worked a series of dead-end jobs like a bank-teller, he also believed that German Jewish-owned bookstores and publishing companies were deliberately preventing his literary career from succeeding by not endorsing or publishing his works.
If the Nazi top-tier hierarchy were to have a true intellectual among its ranks, then Georbels was that man and perhaps, to a lesser extent, Albert Speer, since his successful career as an architect, inter-war, was sort of seen by Hitler as the kind of career he could've had if he had succeeded as an artist. And based on some newer primary sources, the general view among many WWII