All I can say is look who sits on the code making panels. The manufactures of equipment that is "Required" to be in the new codes.
To be fair, no single group, like manufacturers, are permitted to have more than 1/3 the seats on any code panel. It takes a 2/3s majority to approve a change.
That being said, it does seem that the manufacturers have an undo influence on adopting rules that help their bottom line.
