Alexander Dugin is not a person who should be taken seriously. He is, first and foremost, a crook. Unfortunately, there are many people who have good willpower but either not very high or not well-developed intelligence to tell apart someone who is smart from someone who uses a lot of smart words. Dugin is a perfect example of a latter. But Westerners tend to overestimate his actual influence.
One thing he is certainly good for is that his unofficial international network of fans of Rene Guenon, with some Russian state money flowing into it, and Arktos+associates. There are not many publishers out there that will accept a book on race-realism, for example.