At last! Environmental, social, and governance (ESG) investing has become mainstream. That’s a good thing, right? According to the Global Sustainable Investment Alliance’s report released in July, global assets under an ESG-related mandate are, as of 2020, about $1 of every $3. That’s $35.3 trillion, and, according to Bloomberg, they may reach up to $50 trillion by 2025. Many in the industry have in recent years questioned how much of that is the growth in products that are merely labeled ESG, and the clever marketing of more than a few new entrants. Though I am an optimist at heart, as…