Unlike the space merchants, which was a conglomerate, the Hope was completely owned by humanity. However, a handful of people knew that this wasn't true. There was a large, hidden threat on the Hope. If not for the fact that the threat couldn’t be removed, Yao Yuan would have eliminated this threat a long time ago. This threat was the reason humanity could leave the solar system, the source of the Hope’s future-tech, an alien spaceship… if it really was one anyway.
There were definitely less than 10 people that knew about ZERO, and all of them knew how big of a threat ZERO could be. Of course, this was also an opportunity, an opportunity that could go both ways, because ZERO was this ship’s AI.