The Freshfields report takes a much bolder stance while also advancing a more nuanced approach to profit maximization.

"[T]here is no duty to 'maximize' the return of individual investments, but instead a duty to implement an overall investment strategy that is rational and appropriate to the fund,"

The Subprime Meltdown and SRI: Engage, Avoid, Predict

   by Bill Baue 

Shareowner activists engaged banks on predatory lending long before the subprime crisis climaxed, and SRI research predicted the meltdown in time to avoid some impacts.