Anti-psychotics double the risk of pneumonia in the elderly

BBC News reports that Dutch researchers find that use of anti-psychotic drugs in the elderly doubles the risk of potentially fatal pneumonia. An expert report last year found that these drugs are responsible for up to 1,800 deaths in the UK every year and Ministers have said they want to see a significant cut in their use. What I want to see is Ministers putting a legal curb on the use of these drugs, which are overwhelmingly prescribed with no benefit whatsoever to the patient/victim.

Tell me, WHY are doctors (mainly paid by the State, i.e. paid by taxpayers) allowed to prescribe these harmful drugs for no good reason, and by means of the drugs allowed to damage the health of patients and cause them to die sooner than they otherwise would?

Why aren't the guilty doctors arrested and charged with Grievous Bodily Harm or Drug Abuse or some other appropriate charge and punished with the full rigour of the Law?

Is it because the State tacitly favours ending the lives of its citizens who are no longer part of the work force? Or is the explanation even more sinister?