First of all, let me state clearly that I don't like MPs (that's putting it mildly)! There are far too many of them, and to me personally in many ways they represent the worst of mankind (I think that anyone who actually wants to be an MP should be barred from the job on principle).
Biggus, I have a degree of sympathy with your position but we do need people to govern us and I would rather it were the right sort - there are far too many career politicians for who being an MP or even PM is just part of their CV & a stepping stone into directorships & the after-dinner speech market. Gone are the conviction politicians who put themselves up for election after a successful business career in order to give something back to the nation. For Churchill being PM was the pinnacle of his career, for Blair it was a means to a lucrative job.