I hate to say this, but it seems like you might need to hear it: There are a fair amount of flaky people in the dog rescue biz.
Many of them are very good-hearted and sweet people, but they overextend themselves and are disorganized and, well, not always as good-headed as they are good-hearted. I hate to put down people who love dogs and want to help them, but it has been my experience that some of them shoot themselves and the dogs in the feet by not being smart about how much any one person can take on.
And then there are the control freaks. These people love dogs, I think, but what they REALLY love is being in charge of making decisions. I am all for having some strict standards about who gets a dog in need of a home, but I'm not talking about rescue folks who have reasonable expectations. I'm talking about those people who don't want to let any dog go to a person who doesn't care for a dog EXACTLY like they do. And there isn't just one way to do right by a dog, in some cases. A smaller dog may not need a fenced yard. There is not just ONE kind of dog food that is good for a dog. That sort of thing. There are rescue people out there who are extremely narrow-minded and controlling when it comes to re-homing a dog and the criteria they use to pass judgement can be pretty off-the-wall.
All that being said, there are a ton of great people working to rescue dogs, too. You just have to find one of them. It's kind of like dating, lol. You are going to have some bad experiences before Ms. Right Rescue comes along.
A rescue volunteer said to me once that dogs can put up with a lot of things as long as they are loved. I agree with that. In a perfect world every dog would get enough exercise, top notch food, and would get everything he needs 24/7. But this isn't a perfect world and, just like people, dogs need a family that loves them first off. Once a dog has that, you work on the rest.
So if you have love to give a rescue dog, don't give up because you've encountered some flaky people! There are some great rescue folks out there. Keep trying! I had an experience like your's but finally got my GSD mix Peanut . . .14 years ago. Fourteen years with a gem of a dog. It was totally worth the hassle of negotiating the rescue world!