it’s oversimplified and ultimately false.
All metrics are.
Whatever metric one chooses, I find it helpful to familiarize myself with the absurd extremes where a good metric will fail.
When one gets used to the failure patterns of metrics, one stops looking for the right metric, and carefully considers what one wants to measure.
One considers that what one measures, one becomes. In the sense that goals align with metrics. And there is feedback. As the measurable target replaces the goal, the target will move independent of the goal due to the sum of one's actions.
Then one looks for a metric that best fits those needs.
If one's puzzle is:
How do I learn to function on my share of the pie (defined by jacob, above), in such a way that I use the local systems available to me, and account for their costs?
Then I think the dollar is as good a metric as one is likely to find. If only to account for the services provided for you as an American.
As I remember, a jacob is largely consisting of taxes and insurances. This explains why.
prices are not resources.
Sure. If you say so.
Tell me, if one were thinking in terms of double entry book keeping, what would be the name on the other column, next to price paid?