Nobody is forced to pay the monthly/quarterly fees. They apply only to bases which want to sign up in this programme and in return, as said in the document, they receive hefty benefits such as the level 3 license essentially giving the supply business to BretGov entirely.
In regards to the concerns about the marches' territory, these licenses will only apply to the systems mentioned in the document and nothing more.
Regarding governors, they are chosen from volunteers (two, to be exact) willing to put in the effort needed to govern their regions. ooRP, they'll be nice, roleplay-focused individuals who will be put under close restrictions so as to not have them break server rules but also given sufficient autonomy to roleplay their own fiefdom. inRP, yes, they'll be corrupt characters and almost always willing to bend the law to their benefit. This is a roleplay experiment that will test how well both us, BretGov members, and PoB owners, can adapt to such scenarios.