Lovell’s willingness to let Robin stay at Babel even after he has confessed to being a member of the Hermes Society shows just how much Babel needs Robin. That is, they need Robin for his fluency in Mandarin, so they can create more useful silver bars—but they can also use him to gather information on their enemies. By choosing to accept Professor Lovell’s proposition, Robin essentially chooses the comfort of life at Babel over the difficulties that come with standing up to the British Empire through the Hermes Society.