Qiao Yiren was well aware of Yao Yude's intentions, and how far he'd already brought this matter. If Yao Yude were to intervene in Wanghai, it would be a loss of face. But now, through Qiao Yiren's actions, Nie Zhenbang's dignity in Wanghai City was preserved. After all, having a background in the central government was a form of deterrence. Yao Yude's dignity, too, was preserved. It could be said that everyone was overjoyed.
The saying goes, 'leave a line in dealing with others, that you may meet them again in the future'. This was precisely the sentiment being expressed. Qiao Yiren took this moment to laugh and say, "Minister Yao, on behalf of Wanghai City, on behalf of comrade Zhenbang, we thank Minister Yao for your support."
By saying this, Qiao Yiren was also intentionally highlighting the critical role Nie Zhenbang played in this matter to Yao Yude.