(i) Yes, I agree to the above statement. Democracies promote dignity and freedom of the individual.
(ii) All individuals have equal weight in electing representatives.
(iii) No, democracies do not appear to be very successful in reducing economic inequalities. The reason behind this is that political parties are so indulged in their own selfish goals that they get no time to address the question of poverty. The rich remain rich and the poor miserably fail to meet their basic needs of life.