Kindle is for lowbrow, hard copy for highbrow?

That's the main message of this Telegraph article, which did some kind of statistically dodgy survey and found that while 71% of the books (real ones) on respondents shelves were 

autobiographies, political memoirs and other weighty non-fiction titles,

the most popular books on Kindle are - surprise - the popular genres like mystery, thriller, romance and fantasy. It's supposedly because if you're using an ereader, people can't judge a book by its cover, as it were. It frees readers from the shackles of their intelligent, thoughtful public image and allows them to indulge their mucky desires for fluffy pink romance and heaving flesh.