Again, the critical moral contribution of heroes is the expansion of our sense of possibility. If we most of us, as Thoreau said, live lives of quiet desperation, it is because our horizons of possibility are too cramped. Heroes can help us lift our eyes a little higher. Immanuel Kant said that "from the crooked timber of humanity, no straight thing was ever made." That may well be true. But some have used that warped, knotted timber to build more boldly and beautifully than others, and we may all benefit by their examples. Heaven knows we need those examples now.
This is mainly explained by the fact that many ecosystem services are ‘public goods’ or ‘common goods’: they are often open access in character and non-rival in their consumption. In addition, their benefits are felt differently by people in different places and over different timescales. Private and public decisions affecting biodiversity rarely consider benefits beyond the immediate geographical area…. They can also overlook local public benefits … in favor of private benefits …, even when local livelihoods are at stake, or focus on short-term gains to the detriment of the sustained supply of benefits over time….