The people in the world of martial artists all walked their own paths, and they had their own personal set of principles and moral limits. They were their Daos…
The most inconspicuous thing in the game was the market deals. The rarer an item was, the more expensive it was and the higher returns the seller could obtain. It was the same for the other professions too. The more dangerous a job was, the more likely a person was to run into an item that was usually hidden. Relative dangers would provide better benefits!
It was a manifestation of Dao.
Even the diviners on the streets who performed divinations for others had to uphold their moral values and Daos! They had to be careful and cautious in all their acts!
For example, when they analyzed the eight characters of birth and a person's fate toward riches, the price they charged was low, but when they searched for a person's location, it would take time and effort, and the price for that was rather high.