I understand that, but if you want to sell any kind of screen you have to represent that the screen discriminates "better" candidates from "worse" ones. The people who are willing to pay for this screening want the top 1% or 10% or whatever (even if the way it goes down is that they request data dumps and then make up the scoring function themselves). That is how the whole industry works, it's not your fault and you almost certainly can't do anything about it.

Edit: even if you present yourself as a recruiter, it doesn't make any real difference. The value you are adding and charging for is that you are handling part of the recruitment process so that your clients don't have to. Nobody wants a recruiter who doesn't hand them the best candidates.