How effective altruism went from a niche movement to a billion-dollar force

Should doing good become an obligation? Journalist Dylan Matthews encountered Effective Altruism (EA) when he was a journalist covering federal public policy in the US. He was living and breathing Senate committee schedules, think tank reports, polling averages, and outrage cycles - arguments he generally felt were made in bad faith. But, he felt that EA was a transformative experience because it created a sense that there is more to the world than a small corner of Washington, DC. Now, that it's in the mainstream, can it remain consistent to its ambitions?