I'm of course no Pinker himself, nor a tenured prof at Hardvard, or even friends with him, but based on what I read from him and about him, he is very much in support of change toward new, more inclusive, more fair, more egalitarian and more rational institutions. And argues that trade and good old classic liberal ideas are slowly but surely bringing forth these changes (through the work of many hundreds of millions of slightly altruistic people), despite the efforts of our demons (innate or cultural/contextual xenophobia, ignorance, extreme greed/selfishness, etc).