Ben discovered that his father had been misleading the family about the urgency of his cancer treatment. The oncologist's notes indicated a clear warning about the dangers of postponing treatment, stating that the natural history of Joe's disease is death and debilitation.
The savings disappear the moment you hit real-world complexity. Disparate data sources and messy inputs, ambiguous situations without clear rule sets, or actually any domain where the rules aren't already obvious. And someone still has to write all those rules.