Granny Weatherwax and Sam Vimes wouldn’t get on at all, and they’d never admit why, but it’s because they’re too similar. They both have an internal morality more sturdy and unmovable than a mountain, they both know they contain the capacity for great evil, but keep themselves in line with self discipline the likes of which most people couldn’t dream of. They both know about the importance of choice, and of truth, and of autonomy. If either of them were able to look past their aversion to seeing their own reflection, and worked together, they’d be fucking unstoppable.
Something about two of the main Discworld series being focused on these intensely determined, stubbornly moral people just really means a lot to me. You’ve got Moist using his criminal mind to help people, and the wizards doing whatever wizards do, and Death showing kindness to people in their most vulnerable moments. And you’ve got these two, making the world a better place whether it likes it or not. It will get better, or else, they say. Or else you’ll have me to deal with.