The El Dorado idol as the convergence point of everything the game has been building toward — the historical treasure, the supernatural complication, the villain's plan made literal in the object he is trying to take. Nate stopping Roman is the game's thesis about what separates the treasure hunter with a conscience from the one without: Roman does not care what the idol does or what removing it costs. Nate has been learning, session by session, that some things should not be taken.

Gold and bones is the series at its most honest about what treasure hunting produces — the gold of the discovery and the bones of the people who died protecting or pursuing it. The idol is both, which is why it should stay where it is.