Voters have no power if they just stick to orderly voting every X years. If they start boycotting and sabotaging established interests, to the point that they

Voters have no power if they just stick to orderly voting every X years. If they start boycotting and sabotaging established interests, to the point that they cannot be ignored or suppressed, they do have (collective) power. Democracy is participation. The less you participate (not just in voting - in party meetings, demos, etc), the less power you have. Elites will always exist and do their own thing, but they can be forced to do the right thing by applying enough external force.