First, I detect some confusion of the boundaries between Public Health Medicine, Health Policy and the NHS. Indeed, the blurring of these boundaries is to blame for the administrative and financial mesh throttling the NHS. Public Health Medicine is the prerogative of busy-body, do-gooder, meddling, paternalistic nannies and is of no proven benefit.
Gasdoc gives 'em the gun. Go and read the whole thing, you will not be disappointed.