In the end the state is a force of violence. Voting works in so much as it is roughly a tally of who would win if we all pulled knives on each other. Democracy was formed at a time when guns and knives were the most effectual tools the state had to fight against the populace. Now that the government has more asymmetric tools democracy is likely a weaker gauge of how to avoid violence, because the most practical thing voting does is bypass violence by ascertaining ahead of time who would win in a fight.
As this asymmetry becomes more profound, the bargaining power of the populace erodes, and voting becomes more of a rigged game. If the populace can't check the power of the elite, the elite has no carrot to respect the human rights of others.