debateably, doctors still perform unscientific and unethic things to this day. See: electroshock therapy (basically our new form of lobotomy). Deliberately causing brain damage to "fix" mental illness, with almost certain loss of memory, and ability to form new memories.

Or the creeping use of of chiropractors for things other than back pain, despite evidence of it's potential for harm.

Or mandatory insertion of IUDs in china to control the birth rate. I am sure other therapies too, in time will be found to be extremely poor, especially in psychology and psychotherapy, where trials are extremely complicated , and common medicines have awful issues and <50% effecacy (see: antidepressants having permanent side effects even after cessation of treatment)