Perhaps realizing the difficult request he had just imposed on Jiang Yao, Chancellor Wen explained, "That lady used to be a police officer in our city's police force. Apparently, she was injured in duty."
Jiang Yao wanted nothing to do with it but changed her mind after hearing that the patient was a police officer and was injured in the line of duty.
Maybe it was Lu Xingzhi's status as a soldier, but Jiang Yao had a lot of admiration for the military and law enforcement personnel.
"I know the Divine Doctor, but I'll have to see the patient herself to decide if it's treatable." If she wanted to save a person, Jiang Yao thought, she'd at least need to find them tolerable.
For example, Du Chen. She thought he was a cool guy and decided then and there to help him.
With burn injuries, however, Jiang Yao had no prior experience and needed the Medical System's analysis before she could make a decision.