That's not very realistic though. Governments mostly do not own cargo ships. They contract out most of their needs.
See, that's where you're wrong. In the Hyborean Empire,
only governments own cargo ships. In the Hexapod Omnivoracity, the hive mind controls everything. In the JG17i+Violet Connexion, the ships
are the citizens and they conduct themselves in an harmonious manner.
In other words, what is "realistic" is determined by the fiction, not the other way around.