I heard about Sister Margaret from an acquaintance who is a doctor at the hospital. After what happened to Sister Margaret, he doesn’t dare be named, but he sent an e-mail to his friends lamenting the excommunication of “a saintly nun”:

“She is a kind, soft-spoken, humble, caring, spiritual woman whose spot in Heaven was reserved years ago,” he said in the e-mail message. “The idea that she could be ex-communicated after decades of service to the Church and humanity literally makes me nauseated.”

“True Christians, like Sister Margaret, understand that real life is full of difficult moral decisions and pray that they make the right decision in the context of Christ’s teachings. Only a group of detached, pampered men in gilded robes on a balcony high above the rest of us could deny these dilemmas.”

A statement from the bishop’s office did not dispute that the mother’s life was in danger — although it did note that no doctor’s prediction is 100 percent certain. The implication is that the church would have preferred for the hospital to let nature take its course.

The Roman Catholic hierarchy is entitled to its views. But the episode reinforces perceptions of church leaders as rigid, dogmatic, out of touch — and very suspicious of independent-minded American nuns.

Sister Margaret made a difficult judgment in an emergency, saved a life and then was punished and humiliated by a lightning bolt from a bishop who spent 16 years living in Rome and who has devoted far less time to serving the downtrodden than Sister Margaret. Compare their two biographies, and Sister Margaret’s looks much more like Jesus’s than the bishop’s does.

“Everyone I know considers Sister Margaret to be the moral conscience of the hospital,” Dr. John Garvie, chief of gastroenterology at St. Joseph’s Hospital, wrote in a letter to the editor to The Arizona Republic. “She works tirelessly and selflessly as the living example and champion of compassionate, appropriate care for the sick and dying.”