Comment by akamaka

There’s nothing misleading in the study, because they very clearly state the methodology for intangibles, and even provide an alternate calculation excluding it:

Finally, net benefits were significantly reduced when benefits were limited to the reduction in economic losses associated with medical costs and work losses, excluding the intangible costs associated with pain and suffering

…although net benefits appear to have remained positive using a 3 percent discount rate, benefits were generally comparable to costs when a 7 percent discount rate was applied.

https://www.govinfo.gov/content/pkg/FR-2017-05-12/pdf/2017-0...