I'm not a fan of this idea, just because of the fact that if we implemented it, current rulers and admirals would lose their airports/ships, and I'm very protective of mine >_>
We can't move tiers upwards without a consensus of course. I think you're exaggerating a bit though, you won't lose your airport/ship, you'll just have to strive to regain it. The problem is that it's hard to create ranks above those two without going megalomaniac.
And now that I think about it 'Troll Tamer' sounds like a suitable mod title. I guess 'Troll Slayer' is already in use, but maybe conscientious objectors want an option.