Service is things like - feeding the hungry, helping the homeless with warm clothes and hot food, helping people who have to choose whether they can afford to heat their homes, telling people about the gospel of Jesus, etc.
You make a valid point, it is sad though that the JW governing body refuse to recognize that fact. Service according to the gospel of ToMo III and his cohorts means that the lowly Ama-Ahret R&F JW serves the needs, whatever they are and regardless of the cost, of the governing body. And anyone other than them can be gone and be damned.