These, as a cohort are lagging other institutional investors such as pension funds. Some exclusion criteria is used; and in a few cases some environment related investments have been made. They can do a lot more.
As long-term investors: They can reap long-term returns of environmental, social risk adjusted portfolios and ESG engagement. They can provide a source of stability in the capital markets.
As passive investors: Not always a good thing as this could dilute shareholders power and create a governance gap
As active investors: Engagement with the companies in which they hold some stakes. Make clear that the influence is purely economic based for any other type of influence could be a risk for other investors and the companies in which they hold stakes.