Fundraising is more than selling, and only a few cynics would liken a project proposal or a donor ask to a saleable product. There are other reasons, too, why percentage-based fees are not the way to compensate fundraisers. First, fundraising does not occur in a vacuum. It's a rare individual who can do it all alone. Take grant proposals, for example.
Some people believe that good writing is the key to good proposals.
But the writing is only the wrapping. A fundable project needs solid objectives, a strong rationale and a way to evaluate success. And asking for contributions or securing corporate sponsorships for special events almost always requires volunteer involvement. In many ways, the fundraiser is a facilitator. He or she prepares the way but doesn't do it alone.