It's useful to think that God will reward you for hard work (or this model gives statistically useful, actionable, and accurate results and makes useful, action

It's useful to think that God will reward you for hard work (or this model gives statistically useful, actionable, and accurate results and makes useful, actionable, statistically accurate predictions) but it is not an accurate model for the mechanism by which external changes in your life occur. I vote against "is this model useful" as an indicator of the quality of a model.