The owners in any society almost always have the guns on their side, and they can outgun anyone else. That's what makes them the owners. They can outgun any farmer, because the farmer spends all their time farming but the owner's goons spend all their time training in violence.
I wouldn't be surprised if multiple nation-states already had them without calling them such because 'Look, someone pushed a button 3 hours ago before it engaged'. Once the private capital gets their hands on them, we immediately transition to cyberpunk no matter what else happens in the world.
If people cannot even get a piece of the cake anymore, the cake doesn't hold any power over them.
So if the rich and powerful just hoard the money, they will lose.
If they hoard weapons: well, if they need people to operate the weapons (or serve them), they will still fall.
The thing is: They look invincible. They are not though. They are human, they bleed, they fear, they die just like the rest of us.