Is There a Moral Responsibility for Choosing Not to Do Something?

As our technological power increases, so does our moral responsibility for becoming wise stewards of the planet and all the other species. As our ability to engineer the shared environment improves, then we are morally responsible for even the suffering that wild creatures inflict on one another. But you can't really blame anyone, because it's really hard to see how our brains could plausibly have evolved to place moral responsibility for people choosing not to do something. It takes a whole heck of a lot more cognative power for me to imagine everything that my neighbors could have been doing and chose not to. So there's no way that evolution would have programmed us to do that.