Because between 650 odd MPs in this country there's approximately 6 who aren't utterly useless oxygen thieves who should be dragged into the streets, forced to dig their own graves and then shot?
I'm constantly amazed that the best three people we can find to run our main political parties out of a country of 80,000,000 are the collection of utter nothingness that we have.
Were not Germany all of a sudden are we?
I think that's unfair..
Many many MPs do fabulous work for their consistuents and don't seek the limelight and you never really see this or the hugely long hours they put in...
Many MPs work stupid hours, and we just don't see this.
Also, many people that we see as utter morons really are quite astute, but as with any job, there's always things that you get wrong... Also, there's often reasons we either don't or can't know about for what seem like utterly stupid decisions.
Mind you, there no excuse for the likes of Derek Conway or Diane Abbot.