About the notion of Aryan superiority, I'd argue that it's actually built into the common psyche of people today. There's still the widespread notion that white people, as a more generic category, is superior in some way or other. If it's not because they are plainly more intelligent, it's because they have some trait or other that makes them more successful, such as 'leadership'. Of course, I'd say that the difference is cultural more than anything, meaning it's to a large extent built on such perceptions and biases, i.e. because people perceive white people to be superior in some way, they tend to be more willing to give higher positions to white people, which is then taken as a confirmation that white people tend to be more successful for whatever perceived trait.