Modern medicine is also mumbo jumbo for the average patient, and still it's crucial that the patient have faith in it and cooperates - without it, they won't be

Modern medicine is also mumbo jumbo for the average patient, and still it's crucial that the patient have faith in it and cooperates - without it, they won't be disciplined to take their prescribed drugs, monitor exams, follow up consultations, and in the end the treatment won't be effective. So I wouldn't downplay the importance of perception, and that depends on culture, traditions, individual values, etc.