Foot’s work includes ethical naturalism, virtue, and the connection between moral judgment and human life. Her runaway-tram example arose within a discussion of double effect and the difference between kinds of harmful action. Remembering this wider project prevents the trolley problem from standing in for her entire philosophy.
Foot’s method makes moral distinctions answerable to carefully constructed cases. A familiar verdict is a starting point for asking what principle could explain it, not a substitute for an argument. Comparing rescue, sacrifice, intention, and duties can reveal that one attractive explanation fails when the circumstances change. Her broader connection with virtue ethics also invites attention to human life and character beyond the single emergency scenario for which she is widely recognized.