Here is note 9 to Part Two, Chapter One of Richard Pevear's and Larrisa Volokhonsky's translation of Fyodor Dostoevsky's Demons:
"Charmeur was a well-known Petersburg tailor. According to his wife's memoirs, Dostoevsky had his own suits made by Charmeur, whom he also advertised in Crime and Punishment."
Do you consider Dostoevsky's masterpiece novels compromised becasue he slipped in advertisements for a preferred tailor? Because I don't.