We can begin with the premise that electric illumination is not installed to provide light.
Light is merely the mans to the end.
The connected lighting load in the space where they work is 28kW. The lighting is operated 10 hours per day, five days each week. Not at all. Given that improved lighting achieves improved results, and given that improved results have a calculable dollar value, improved lighting creates a financial benefit. Therefore, unimproved lighting creates a financial detriment whose value equals that of the potential benefit. And until we bring that hidden cost out of hiding, lighting users will not appreciate what electric illumination is really installed to do, nor the value of having an electric illumination system that provides optimal effectiveness.