Status
Everyone knew how the Global Army's government worked, and the same applied to its market. The nobles always claimed priority over any new, valuable item, be it ships, drugs, or weapons.
Selling directly to close allies would strengthen Khan's force, and he was even willing to bet the Empire would close an eye on it. Owning the best training method would bring immense advantages in mere years, creating assets no one would want to face in an actual war.
However, Khan needed immediate support, and playing by the rules couldn't hurt. He wouldn't lose his monopoly over the production process by involving the other noble families. Khan would actually become a central piece of the puzzle, forcing everyone to be in his good graces to earn benefits.