Don't shiver. Money is not power. Weapon is. With money you can't buy if the seller not willing to sell. While with weapon you can just take whatever you want, no money required.

And what percentage of world's military power are currently in hands of one person? Most of it! One silnge person (his name starts from "O") controls an army that is stronger than all other armies in the world, combined. Not 2%, but over 50%. And not buyin "power", but direct military force.

It's bad, IMO, but still no Armageddon have happened. So why are you expecting it to happen from mere 2% of non-military power?

IMO, existence of BTC-trillionaires would improve current situation. Early bitcoin adapters are mainly from libertarian circles, so they will likely use their money to fund projects that will reduce power of states over people. In fact, bitcoin is one of such projects. I want more of it!