Apparently, because the actual overall majority of voters didn't vote for the Tories, so the Tories don't have a mandate for their agenda.
76% didn't vote for this Govt - Osborne has no mandate for austerity. He wants to shrink state not cut deficit #EndAusterityNow #JuneDemo - Caroline Mucus
That's lovely, Cazza, but as was immediately pointed out to her, 71% of the people in Brighton Pavilion didn't vote for her, so is she going to resign out of principle?
Furthermore, as I recall (and I may be wrong, but it's definitely that order of magnitude) something like 61% didn't vote for Blair in his "landslide" and I don't remember this concern for the unrepresented from unwashed lefties back then.
There have been dozens of variations of democracy implemented all over the world, and none of them ever meets with universal approval. But the British state has gradually been centralising control powers over decades, meaning that the blatant disparity between what people want and what they get is becoming more and more overt.
The same thing happened with the Scottish Independence referendum - despite a very clear win, there was a sufficiently large minority who lost out that feel that they haven't been heard.
Yet when I point out that this is always the case in a democracy, that there is always a large chunk of the populace who get fucked over, whatever the result, I always get told that I should join the system and change it from within. I'm told that my sniping from the sidelines does nothing useful.
So today my message to the earnest, the thuggish and the hypocritical who want someone else to pay for everything is this: go become a politician, go change the system from the inside. Your protest marches are no more effective than my blog posts.
Or alternatively, consider the possibility that I may be right: democracy is merely a fig leaf that allows evil Tories to fuck over the poor or kind-hearted Labour to fuck over the poor in a different way.