I like the points you make here Richard.
I'd also like to add, herbal remedies come directly from the plants themselves, where as drugs are manufactured in a lab from chemicals.
So what might be the great difference? One is grown in nature, receives warmth from the sun/Son, experiences photosynthesis through the leaves, grows through natural mineral uptake through its roots, has a God designed balance of different minerals; and when extracted properly, will continue to contain the elements inherent within that made it a living plant. Making it a living remedy.
Drugs from a lab? Chemicals collected from nature, goes through no natural experience in any plant, receives no growth experience from the sun/Son, is balanced in mineral makeup according to man's ideas, and has never experienced anything that gives it any living life force.