I don't think Herbalism has done that since the tournament arc. After the tournament arc, our spending money came from our winnings. After Yuhua Hall, our spending money came from what little money Xiahou Yu managed to scrounge together with the assistance of the women there. After the Hundred Man Battle, I believe we gained some spending money from the reward for our assistance. In the route where Jing got needled and lost his belongings, he was completely broke at Youxia City, suggesting that Jing didn't earn any money but was instead living off the land to cover his basic needs. Yuhua Hall appears to be the last time Jing's Herbalism skill did anything. (Sure, there was treating the wounded eye, but the eye didn't recover.) I can understand Scholarly Knowledge not being of much use. It's not something that's readily applicable to the situations that we tend to enter, and the only other use of it would be for treave to insert more flavor text and background info, which is a lot of work for updates. Herbalism, on the other hand, seems like it had more opportunities to be useful. But the way Jing's Herbalism skill has seen use, you'd think it was considerably lower than his unarmed skill. Eh, I guess I'm just venting my disappointment that we didn't really get to see physician Jing despite his considerable skill. Then again I didn't vote for entering the army camp either.