Please to hear all this. I just want to add, re 3.b., that we should expect that some fraction of the giving of very wealthy donors occurs because organisations like GWWC reach them and their social networks and normalise the idea of giving effectively and significantly. To test your intuitions on this, ask yourself how many fewer resources dedicated to EA principles there would be in the world where no one had bothered to promote GWWC.
Please to hear all this. I just want to add, re 3.b., that we should expect that some fraction of the giving of very wealthy donors occurs because organisations like GWWC reach them and their social networks and normalise the idea of giving effectively and significantly. To test your intuitions on this, ask yourself how many fewer resources dedicated to EA principles there would be in the world where no one had bothered to promote GWWC.