You do realize we have to learn pharmacology too right, and like every doctor, you research and make your decisions based on your education and research
As for an ortho vs chiro that’s a specialty they will do more formal training, but i had to learn the anatomy, the neurology, moi or pathophysiology of injuries and disease processes, the radiographic anatomy and pathology of injuries and disease processes, i won’t say they know more, so much as they have their specific niche and spend way more hours in it than we do, but level of education is about equal add pharmacology and surgery