Why do singers have the lowest status in the Jianghu?

In the ancient feudal society of China, people were ruled by grades in strict accordance with their occupations. Three religions and nine streams are the occupational ranking order in feudal society. The nine streams in Hanshu refer to Confucianism, Taoism, Yin and Yang, Legalists, famous artists, Mohists, strategists, miscellaneous scholars and farmers. Sima Tan, the father of Sima Qian, first divided the hundred schools into six schools: Yin and Yang, Confucianism, Mohism, Ming, Fa and Taoism. Later, based on the division of Sima Tan, Liu Xin added ten schools of "vertical and horizontal, miscellaneous, agricultural and novel" to Seven Views. Ban Gu attacked Liu Xin in History of Han, saying: "There are ten philosophers, but only nine people are impressed. Later, people came to "novelists" and called the remaining nine "nine streams". Nine streams can be subdivided into upper nine streams, middle nine streams and lower nine streams, but there are different opinions. Emperors, sages, hermits, immortals, literati, warriors, farmers, workers, Shang Buddha, Heaven, Emperor, Official, Ge Lao, Prime Minister, Jin, Ju, Buddha, Immortal, Emperor, Official, Fighting Officer, Weigher, Worker, Merchant, Zhuang Tianfo, Immortal, Emperor, Official, and Cooking Pot. Jin (divination), monk, Taoist, chess player, doctor, geomantic omen, criticism, painter, monk, Taoist, chess player, doctor, geomantic omen, criticism, painter, physiognomy, monk, Taoist, chess player, official, scale, matchmaker, pawn and time demon. Blow hands, play actors, and sell sugar on the street. First-rate Buddha, second-rate fairy, third-rate court, fourth-rate official, fifth-rate businessman, sixth-rate guest, seven greedy, eight lazy and nine gambling. In China's ancient feudal society, actors were called "loners", which were dedicated to the entertainment of dignitaries and had low social status. There is a saying that "bitches are heartless and players are heartless", which means that the evaluation of players' character is also like prostitutes, so these heartless occupations are classified as "inferior".