Zoners are quasi-legal, just like Junkers. We don't HAVE to get along with them, after all. It's just been convenient so far to do so.
And I guess I'm a bit confused, because we have two bases that are ours, plus a bit of a presence in house space, and that's it. When you're referring to the Wilde, they have two full systems that are theirs, Nomads have more than one as well.
Lets get an example of a public faction please.
Edit: This post seemed too short so to add i'll say this:
Main reason those factions own multiple systems is because they don't have bases anywhere else. In addition, do you think any other faction would be given ownership over Iota if Keepers relinquished ownership of it?
Just completely repurpose the biggest nomad system in Disco to a Civilian Guard Faction system?