Political power gives people certain rights, privileges. And it scares people who don't have it. Who wants to go against someone who has the power to destroy their lives?
Political power gives people power over other people, their minds and their bodies.
Immunity to members of the congress, parliament immunity as we call it in Brazil, leads to the idea that they can get away with anything they want. And they take advantage of it. Who won't take advantage of license to get away with murder? Even people with good morals may slip. What to say of people without them?
We want to believe that some people of good character will stand up against people with with none. We want to believe that some politicians with a hint of what honesty means will fight the impunity of those who have never known it.
But if there are those who have the guts to stand up against politicians who are not afraid of anyone or anything, because they can buy them or control them, who will stand up for them?
Is a multi-party system any better than a two-party system in fighting corruption? I don't know. I think the only thing that makes one better than the other really is the people that are part of them.
But regardless of how good or bad people are, I have to say that maybe at two party system will fall into the trap of making the opposite party the enemy, and corruption gets overlooked if it's on your side.
In a multi-party system, because the lines of party loyalty are blurred maybe it's easier for everyone to join together against the corrupt ones - it does not matter which side you're on. Should that be the answer however, Brazil would be the cleanest country in the world. Should that be the answer we would not bitterly call our country the land of impunity.
Is a two-party system the answer? I already made my point why the answer is no.
The answer? From a strictly human point of view I don't know. I say make as many regulations as you can. I do believe that as much as possible people with power should be scrutinized - without the privilege of the party allies to protect them.
On the risk of sounding cheesy, I will speak as a Christian, the answer is not one system or the other. The answer is the people. People who take a stand of following the morals instituted by God.
Besides that I don't believe there is a perfect system. But I will still strive for one as faultless as humanly possible.