How do the high positive rates for drug testing in the U$.$S$.$ harm its competitive position and what can be done at the national level to help reduce drug use and enhance rehabilitation?

Do you believe the local experiment in the restaurant business described here could be replicated on a national scale, where a whole restaurant chain might be built upon this $$dual purpose$$ business model that seeks to make money at the same time it tries to perform a public service? Can you think of industries other than hospitality that might also be suited, or suited better, for this unique business model?