While Kinbote is highly critical of Gradus’s failure to carry out his mission, he takes care not to criticize these two Russians for not finding the jewels they’re assigned to locate—this is merely part of a divine game, he says (extravagantly excusing them), not a reflection of their competence. Perhaps Kinbote is so much harder on Gradus because he is a Zemblan revolutionary (emblematic of everything that Kinbote hates), whereas these Russians remind him of pre-revolutionary Russia when the monarchy was still in place, which Kinbote misses. Kinbote’s nostalgia for monarchy and his (false) assertion that Tsarist Russia contained neither tyrants nor injustice suggests something about his background. Professor V. Botkin (Kinbote’s true identity) is known to be an exile from Russia, and he may (like Nabokov himself) have come from a wealthy background, socially adjacent to the Russian court, and then had to flee after the revolution, losing the luxurious life he loved.