My money is limited, the causes which can benefit from it are not. It seems to me the height of self-absorption that an organisation should expect donations over the many other worthwhile causes without justifying the benefit that money would bring.
Changes to editor tools and processes don't cut it. All of those exist in service of improving Wikipedia as a resource. If I can't see those changes as an end-user, I question whether any of them really mattered. Is a fantastic new user-friendly diagnostic machine justified in a hospital if treatment rates don't go up?