This episode is remarkable for its fairly authentic portrayal of Chinese culture in America and the issues of social justice that faced Chinese immigrants---kudos to screen writer Shimon Wincelberg! The writing in Chinese characters seem authentic (to my limited eyes), and the spoken Chinese (in the Cantonese dialect) as well sounds authentic (to my limited ears). The musical score departs from the usual canned bites to present a different and alluring sound.
The play touches on an important cause of crime in Chinatown: corrupt city government, which keeps gangsters like the episode's antagonist, Loo Sam, in power and which perpetuates injustice through indifference to crimes against the powerless residents.
The plot hinges on two points: one, that Westerners have a lot to learn about the thousands-year-old Chinese culture. The second, that the protagonist himself has something to learn as well: as Paladin puts it, "What makes this country is not its great men, standing alone, trying to do the impossible---it's men of all kinds, large and small, trying to do a job together: not for their personal honor, but for the honor of their country."
In a touching finale to the episode, Paladin bows to the assembled people of Chinatown before taking his leave.