> political problems can only be solved with political tools, not technological tools.

Yes and no. Some technology changes the balance of power.

One of the best examples is the innovation of gunpowder weapons and the rise of democracy. It's not the case that the invention of the musket and cannon was solely responsible for the fall of monarchy and the rise of democracy. But it certainly helped.

Is crypto-currency that sort of innovation? I guess we'll find out.