Part of the presentation referred to in the fine article covers how standards bodies spend millions lobbying to have their standards accepted into law. Another part covers how those same standards bodies have a robust revenue stream from value-added versions of the codes.
And it’s not like there won’t be a code that has force of law and it will all go to insurers; if ASME really wants to take their ball and go home, some other standards body will be happy to provide one.