A version of this story appeared in CNN Business’ Nightcap newsletter. To get it in your inbox, sign up for free here . New York CNN  —  Each year, when the Larry Fink letter goes out, it’s required reading on Wall Street. The CEO of BlackRock, the world’s largest asset manager, pens a memo to shareholders that quickly becomes gospel. It was Fink’s 2018 letter, for example, that helped catalyze interest in do-gooder investing known as ESG (for environmental, social and governance) — a term he