Li Xu fully understood the need to control and audit the production of mysterious potions by the "Specter" program, requiring that the trading of such mystical items and related transactions be recorded.
The potions were time-sensitive, requiring immediate use once exchanged, whether in two hours or half an hour. Since the Specter program was unpredictable and expirations were clearly marked, modern technology should not allow these potions to be preserved beyond their expiration time.
This rule alone quelled the urge to completely monopolize them.
Add to that the constant production and the wide range of personnel involved, countless eyes were watching, many drooling over it...