I have come around to the belief that economically efficient behavior can be more ethical. When I have something I want to get rid of, I have tried giving it away, but I learned by experience that people who are first to grab something aren't necessarily those who will make the best use of it or who need it the most. So it may be better for society to sell or auction it even if that has significant overhead. Raising more money isn't even the point; it's a side effect.