Lu Rongting's appearance-not good? What's going on here?

My friend told me that this is a two-part allegorical saying in Guangzhou, which means that a good thing has reached the point of a bad thing.

There is a story.

The emergence of Lu Rongting-Wu Fei's stack was once the governor of Guangdong and Guangxi.

Lu Rongting had a whim, dressed in the clothes of poor people, and walked into the fortune-telling hall in rags, trying to test Mr. Mao's eyesight for fun, but was told by the fortune-teller "Little Fairy" that it was not a failure. It means that he is a prominent official, so why does he pretend to be poor, but he has to pretend to be poor? Later, people put good things in bad situations, which is called "Lu Rongting's embarrassment".