The normal-minded citizen
He is against corrupt politicians, has no prefered criminal, does not like impunity and thinks it's good when any politician is unmasked, because he already has a natural disbelief in relation to 99% of them.
The left-minded citizen
Goes out to protest against the corruption of his polical enemies, but welcomes with open arms the corrupts that are ideologically allied.
It places the party and the "cause" above ALL, including above moral caprices that condemn corruption - a value of the bourgeoisie that only serves circumstantially, as a weapon, when it can be directed to the adversary.
The citizen who is in the middle
He tends to normalcy, but is usually confused by the scale of values of the leftist citizen with which he is frequently bombarded. To different degrees, he adheres to some points of the left agenda (feminism, gayzism, victimism, racism, class struggle, etc - in short, everything that divides society) without the understanding that they are the weapons of a political-ideological fight and never ends in themselves.
When you argue with a leftist, you often get the impression that this is an inglorious task - "he will never change his mind". That's probably truth. But the importance of doing this is that often the citizen who is in the middle are watching the debate.
It's their psychology at stake, and that's why it's worth debating and winning.