I don't actually think he's that impressive and I don't get people's praise for him. His videos have a lot of mistakes in them and while they're written in a way that dumbs down a topic well for an audience who doesn't understand the subject very well, that's his only major skill that's involved here. He's not especially smart or ingenious, he's just a good communicator. If he was to work somewhere it would be in a communications department, but he probably makes more from Youtube than such a job would provide.

That's why he doesn't work for somewhere in the industry, youtube makes him more. (He makes enough money to hire other people to write for him, as we can see in the linked article.)