My belief is that to a large extent the art of politics is the art of bothsidesing and rationalizing away your integrity for common aims. And that when applied correctly, these common aims can be used to benefit the public. Look at systems where you can't bothesides (also known as finding common ground and compromising) or rationalize the integrity of other members (also known as acting in good faith). I suspect you will not find the results of these political bodies to have preferable results to the American Congress!