The explanatory detour gives the reader a way to interpret a refusal that takes the form of an apparent acceptance. It also makes the book’s title carry a concrete social arrangement rather than remain only a metaphor for dishonesty.
The passage exposes the intermediate step that makes the comparison explanatory: the availability of alternatives changes the seller’s need to please. Readers can inspect that bridge rather than being asked to accept a direct leap from rudeness to power.
The unit of explanation expands from the cost of an employee to the relationships the departure changes. Adding the product-market mechanism prevents the personnel story from becoming the only explanation of the decline.
Reviewed examples have a source-linked editorial interpretation. Detected candidates are exact passages or structures retrieved by an explicit rule and still need interpretation. Neither label establishes a cause of bestseller longevity. No missing text is counted as a negative example.