I honestly think someone just has a bit of an ego, and is just making themselves out to be bigger iRP than what they are.
Funny what happens when a faction leader becomes an OFL, and then suddenly thinks they have entitlements beyond what they are as a faction.
You're literally acting like Cardamine is the lifeblood of the game, and not just a small criminal underworld. Let's count the actual iRP users of Cardamine:
Lane Hackers, Rogues (Not all though, as per their RP), Chrysanthemums, Core (For research purposes, and this is very recent).
In reality, that doesn't leave a lot in the way of your monopoly profits. Even if all those were addicted, only really LH~ have the capital power to actually make you even a percentage of the money you claim iRP and ooRP to possess.
Also, difficulties with the birth rate, isn't strictly conception, it's the ability to hold onto the child during pregnancy. While I don't doubt that the population of Malta is large, the claims of 500 million still seem ambitious to me.
"It is not as powerful as a house, surely, but compared to zoners I can use the figure of speech "grand armada" for how many BS inRP do zoners have?"
Simple, look on our faction pages, and look at what we have as far as just our "Canis" fleet is. Should give you an indication. Given that we've kind of been fighting the nomads long enough and now have the capability through both Iridium, Azurite and general trading/business deals as well as private funding from benefactors.
In short, Cardamine isn't as much iRP profit as you would like to think it is. Now, Iridium on the other hand, which is what Velvet deals in, used pretty exclusively, even stated in the Armour Upgrade description. But hey, what do I know.
Either way, Garda, you're not as invincible as you want to make out the OCs to be. I can list all the ways in which factions are different, and will happily say my faction for example is not heavy on population or have a huge reach. The profits are reliant on buyers, which iRP, the OCs have very little.