Murong Ye wasn't looking down on Sun Mo. But rather, people who passed all the trials and entered the Giant Dragon Great Hall wouldn't obtain anything at all.
This was because they didn't understand the dragon language.
Just like what Sun Mo had guessed, the Dragon Subduing Palace was created by the founder who had luckily found a wooden puppet, using it as a core.
The true 'wealth' of this place wasn't to allow one to defeat the summoned draconic humans. Rather, it was the fact that after one passed all the trials, they would be able to gain the qualifications to communicate with a giant dragon.
If they obtained recognition from the giant dragon, they would be able to gain some valuable knowledge.
The majority of the time, the rewards would have to do with the study of beast taming.
After all, the giant dragon was a hegemon of the world, enslaving all lives.