What is the reason why the Fourth Childe on the third floor of the building is willing to save the gentleman in charge of the salt shop?

Yang Zhizhong, the housekeeper of the salt shop, was reported by his employer to have lost 720 taels of silver to Deqing County and has been in prison for more than a year. After learning the truth, the three sons and four sons of Loujia were charitable and did not leave their names. Because he failed in the imperial examination, he complained to the court. He often said that "the Ming Dynasty will not be a world since Yongle (Ming Chengzu Judy) usurped the throne", and praised Yang Zhizhong, a Gong Sheng who lost in the same field, and "Great minds think alike", which triggered a series of jokes.