Western Jin Dynasty: I Became the Thigh of the Sima Family

[No system + farming + developing technology, the more you go on, the more exciting it will be] Jiang Chen, who was about to go on a trip, was taken by a meteor through the ninth year of Taikang in the Western Jin Dynasty. When he came to his senses, he was caught before the emperor as a weirdo. However, he unexpectedly cured the emperor's wind paralysis and discovered that the current prince Sima Zhong was just like him. He also became friends with various dignitaries. He competed with Shi Chong for wealth and with aristocratic families, from Zhuge's crossbows and weighted trebuchets to red-coated cannons and fire blunderbuss. Jiang Chen believed that he would bring different vitality to the land of Western Jin Dynasty. I would like to ask why the Western Jin Dynasty cannot make people look up to it?