Economic disparities often translate into disparities in political influence, rendering political liberties less worthy to poor citizens than to wealthier ones. Concerned with this, Rawls advocated that a guarantee of the fair value of political liberties be included in the first principle of justice as fairness, with significant regulatory and distributive implications. He nonetheless supplied little examination of the content and grounding of such guarantee, which we here offer. After examining three uncompelling arguments in its favor, we complete a more (...) promising yet less explored argument that builds on the value of self-respect. We first inspect the conditions and duties that securing self-respect entails. We then look into how uneven allocations of the value of political liberties bear, expressively and due to the power imbalances they yield, on such conditions and duties. (shrink)