One thought that re-occurs to me is that there could be two, related EA movements, which draw from each other. No official barrier to participating in both (like being on LessWrong and EA Forum at the same time). Possible to be a leader in both at the same time (if you have time/energy for it). One of them emphasizes the “effective” in “effective altruists”, the other the “altruists”. The first more like current EA, the second more focused on increasing the (lasting) altruism of the greatest number of people. Human resource focused.
Just about anyone could contribute to the second one, I would think. It could be a pool of people from which to recruit for the first one, and both movements would share ideas and culture (to an appropriate degree).