The quote highlights the protagonist's mediocrity, suggesting that he is so unremarkable that he stands out even among others who are also ordinary. This emphasizes a sense of singular dullness that makes him memorable, despite lacking any traits that would typically attract attention or admiration. The idea reflects on how, in a world filled with the mundane, some individuals can still seem exceptionally bland.
This observation provides a commentary on the human condition and the nature of identity, indicating that even those who are forgettable can leave an impression. The irony of being "impressive by being unimpressive" presents a unique take on how people perceive one another, contributing to the overall themes of absurdity and individuality in Heller's work, "Catch-22."