Establishing a pure democracy is never easy and when you get the centralization of power that a representative democracy (or democratic republic) brings it can

Establishing a pure democracy is never easy and when you get the centralization of power that a representative democracy (or democratic republic) brings it can create incentive structures that don't represent the electing population. When you have the power to hide something as a political representative and the general population don't have the means to provide an attestation to whether something is true or not, it starts creating room for elected actors to work against the interest of the people in scenarios where they could reliably hide malpractice. The blockchain isn't converting democratic republics outright, but it does give more power to the people by allowing them to attach their unit of account to what is now considered to be an apolitical monetary system that can be participated in by anyone.