I helped HANC form a separate 501(c)3 corporation, HANR, but I'm not sure that it influenced donations much. I haven't been a member for a few years, but it seems to me that most of the donations came from members who would have donated anyway, and not from outside the club. Some of the individual donations were small enough that a tax deduction wasn't much of a perk, while the biggest monetary donors were those who did breed, and/or show, and/or work their dogs towards titles.
Some money was generated from adoption fees which were pretty low, so rarely covered the cost of fostering and routine medical care. If you don't get a lot of dogs coming through rescue, you don't bring in many excess dollars to support the cause. If a rescue gets a dog that needs expensive medical care, it can wipe out their bank account in no time flat.
Clubs generally don't have the time and resources to do a lot of fundraisers that reach out to the general public. It's different for regular shelters and humane societies, who appeal to the public through advertising and major events. They usually have a staff of people who do nothing but rescue, and also have regular patrons that donate generously. Clubs rely on volunteers to run rescue, or foster at their own expense, or donate dollars.
You have to remember that breed clubs are established to promote the breed and it's special characteristics (by showing and working them), and to bring together a variety of owners and interested people. They are not established primarily for rescue (the responsibility for which should belong to breeders). That is just one of their many voluntary functions. Without a diversity of people who show, work towards breed specific titles, rescue, mentor others, and who simply have companion dogs, a club would have little meaning. No individual member can be expected to cover all the bases and many contribute behind the scenes, without their efforts being obvious to the rest of the membership.
My guess is that most regional Newf clubs are not blessed with big reserves of money unless they have a huge membership that either donates regularly or can run many fundraising events in their spare time. Also, you won't find an abundance of volunteers anywhere who have the courage and wherewithal to take on rescue. It takes a very singular person who is willing to make themselves emotionally vulnerable, who has the time and the space, and the extra personal funds to take on foster care or other rescue functions. Its a job that is generally distasteful and has as much heartbreak as it has reward. One has to ask oneself, "Could I do it?" or "What have I contributed?", before disparaging others.
It's the entire dog loving community, such as the good folks on NN, that make the difference when there is a genuine need. We've seen appeals here for specific dogs with overwhelming medical costs, and the generous members of this forum and others have come through time and time again. Without their compassion, some dogs may have just been put down. Those individuals who do donate when there isn't a special need are not many, but they do have an impact. Every dollar counts. and is appreciated.
