Kerouac and Burroughs are objectively awful. I still think that Kerouac's popularity as a writer was an industry practical joke. Speaking of both skill and content. A People's History used to be an AP History book, so appropriate for very mature kids with teaching support but the books is in a different category. Assuming that the Mensa list is pretty much just an exposure of standard prep school English literature list to the masses, albeit uncurated so as to make it difficult to use. There's too much promotion of substance abuse in Thompson books to qualify them as appropriate for kids, even if the books are otherwise good. Usually high schools aren't in the business of radicalizing students with Chomsky as well as other very political books. Kids can pick that up in college and beyond.

In general, these books are categorically different. The provided list isn't missing them. They'd just be on a different list.