Although the majority of people did not truly understand the conversation between Wang Wei and Yan Liling, they can still infer the fact that the young master has a solution to the question asked.
All of them became excited at the future prospect described by the young master--especially the new subordinates of Li Jun.
Throughout the Spirit Road Trial, Li Jun has insisted many times that Wang Wei was their true boss, however, not all of them agree with this even though they did not say anything. They have been serving Li Jun for a whole year, how could they just accept the fact that some random guy is their boss.
However now, although their minds have not changed, a seed of hope has been planted in their hearts. Maybe if they follow the Young Sect Master, they could one day change the entire world, that their deeds will be forever recorded in the annals of history.