Their marquee effort, Stand Together, has cobbled together an unlikely coalition of business titans, celebrities, and community activists to tackle everything from criminal justice reform and education inequality to lowercase-L liberalism and uppercase-C capitalism. Meanwhile, Chase Koch’s Key Change initiative and his Believe in People organization are scaling up and have already churned out more than $400 million in projects. “My father's been involved in social change for almost 60 years of his life,” Chase Koch says. “So it's based on a lot of learning over a very long period of time. One thing that's very different about our approach and why we think so long term is that we don't really think about it as philanthropy. We think about it more through the lens of social change.” And that approach demands results, not just warm feelings: “Milton Friedman said the greatest mistake is to judge programs and projects based on intent, not results.…