Quite disheartening being with personally ambitious people "with good ideas." People without a core want for social justice are draining. Power and ideas for self aggrandisement or a slap on the back from the hierarchy drags all around you down.
In The Thick of It drove the nail into the slab of oak when they showed the Tories sitting in a circle throwing the ball at each other. As the unprincipled lot caught the ball, they congratulated each other on ideas that were more and more draconian and bizarre.
Nasty back biting and refusal to step outside a power hierarchy for the common good drives politics.
It can't drive positive campaigns.