Social impact bonds for public health programs

Imagine a public health program that reduces the incidences of childhood asthma. Or imagine another one that assigns a home visiting nurse to women pregnant with their first child. Don't stop there. Imagine another program that identifies children under six who are at-risk of abuse and another one that helps the mentally ill out of restrictive institutional settings and into meaningful community housing.
The more cynical among us who suffer from "compassion burnout" may say that there's very little imaginative about the public health programs noted above that have been launched in states like California, New York, New Mexico, Oregon and South Carolina.