Back in the 1800s what good was the country doctor for medical needs?

Watching old western movies I wondered what good was the country doctor? He did not have xray so anyone bucked from a horse with an ache in the leg there was no way to know if it was a torn ligament of fracture, which would not make any difference he could not treat either really. He had no pain killers, no hydromorphome or anything. Couldn’t do transfusions, nor flu shots, he did not have CAT scans to check head injuries. What good was he really? He could not even operate to remove a bullet or take out a ruptured spleen.