Ideally you are correct and this would be the ultimate desired outcome. Unfortunately there just is not enough funding coming into these orgs to match the $ gov't conservation programs can generate trough tax $. (or in our modern American case--through printing $)
Much of the work these orgs do is through the help of dollars matched through gov't programs. For example, a PF or Du chapter raises $1, the gov't will match it with $3-$4. --again, amount is an example.
With that kind of $, projects can happen. Without it, that is, using PF/DU funds solely, there just simply is not enough for widespread projects.
As O&N basically stated, at this time help from the gov't is our only way out of this particular issue.
Think about the access to private land when you drive into the landowners yard with your PF and DU sticker in your window right after the guy finds out what congress has done to him.