When I refer someone to another business I want to know that the other business shares my dedication to the welfare and best outcome of the client.  If I doubt that the other business share the same level of dedication and commitment I have, then I decline a referral.  Each referral is a testament about my credibility and trust.  

I will not betray that for marketing or money gain.  With those businesses who share my passion for helping clients achieve their best possible outcome, I readily embrace them.