This "compassionate" appeal to murder people not up to his royal standards is common amongst our glorious traditional doctors. It all starts in medical school ... conditioning them to see compassion in killing people.
Wouldn't it be ironic if he developed dementia (in and out) and someone told him it was time to go and he couldn't express his desire to live?
Someone posted the "new Hippocratic oath" which ever so delicately suggests one duty a doctor may see would be to kill. Barf retch gag vomit.