That's not necessarily a valid conclusion. It is a work of fiction. You can't use it as evidence of what was going on in Russia. At best it can be used as evidence of what were the topics the author were thinking about, and as such an indirect proof of what was discussed in the zeitgeist.
Similarly I could write a book set in 2025's America where everyone constantly talks about how the collapse of the bubblegum markets wiped them out, and discusses the benefits and ills of bubblegum trading. Doesn't make it true.