As a result, any non-government employee who's ever contributed any text to legislation now owns that legislation privately. And they can restrict public access to their law. And they can charge for access, usage and enforcement. And they can prevent governments from using their laws, making enforcement of law unequal, a patchwork of privilege based entirely on the preferences, biases, and financial interests of these owners of law.
As economic activity is always under a wide range of legislation, and as nearly all such legislation is contributed to by private interests, almost all economic activity is now subject to veto by any of the hundreds of contributors to the laws governing that activity.
It's more than a thumb on the scales of competition, it's a veto over every business activity in the Country given to those with vested interests in favouring one entity over another.
Furthermore the company who made the light switch wrote the regulation. They can change the regulation to make your installation illegal if they don't like you. They can write the regulations to make it impossible for any other company to make a light switch. AND THEY DO. They do stuff like that all the fricking time. Ever wonder why electrical stuff is so expensive and so crappy in this country? That's why. CSA approval process, doing favors for Friends.