How do you think elections and parliament works?
Those who vote in a party do so as they 'except certain policy changes could greatly benefit AND NOT hinder them financially'
That is the governmental system we work upon.
How you have phrased it, is a distilment of the situation, and indeed in a perfect system, you would hope politicians didn't have their own best interests at heart. However, we live in the UK, they all have their own best interests at heart, else they wouldn't be politicians. Most easily seen in Norn Iron, where the politicians agree to hold government in sessions of 5 years at a time, while achieving nothing, and blocking anything that might look like a victory for the 'other side'.
Quite the perfect definition of a shower of very heavy excrement.
The solution being presented is retarded, unthought and idiotic in constitution. I am glad he is labour leader, as the longer he remains such, the more likely it will be they do not win. The Kinnock of our times.