Whether it concerns climate change, supply chains, human rights or corruption, investors increasingly seek to better understand the impact that their investments are having.

One recent Bank of America press release states that three-quarters of investors want to work with an advisor who offers investment strategies that result in competitive returns and positive impact. An even higher percentage of millennials want to make a connection between financial and societal outcomes — as high as 86 percent, according to a recent Morgan Stanley analysis.

But can investors really have a positive impact with their investment dollars while also maximizing financial returns? This is no small matter. It is more than a trillion-dollar opportunity — consider that Bank of America alone has a client base representing over $2 trillion in assets.

What makes this question difficult is that the field of impact investing hasn’t always asked the right questions when it comes to maximizing impact. What’s really needed is a paradigm shift across markets. Impact cannot and won’t be maximized if “impact investing” remains siloed to high-net-worth individuals and foundations. Impact investing needs to factor in all asset classes to be as meaningful as it can.

Read more: The real impact of impact investing | GreenBiz