Nice idea and it sounds very efficient and fair, but it sounds like a rational society is a prerequisite. A democratic society may choose to ignore it (through legislation or regulations) no matter what the data says. I'm thinking of data driven 'profiling tactics' post -9/11 at the airport and the resulting shakedowns of senior citizens and small children in the name of fairness. I think we might be 2 or 3 thousand years from such a society.