This might be also because while our writers (I am not really sure about poets (Pushkin just does not seem to travel as well as Dostoyevsky, or Shakespear) from the 19th century on actually are "world class" so to speak, Russian painters, composers and architects up until early 1900s were really quite derivative and second rate. With all the complexes Russians tend to have aboutr being compared to Europe, or being considered (or not considered) a part of Europe, idolization of writers is quite understandable.