It's unlikely that it would have lasted until now, those candidates for the Duchy who already controlled the interests of the traditional Chambers of Commerce would have swooped in and carved up the Lancaster Chamber of Commerce long ago.
The most disgusting method in the world of commercial warfare is unfair competition, where large Chambers of Commerce crush smaller ones, depriving them of the profits they could have earned.
He had heard that before the global nuclear war, in the country of his previous life, many emerging high-tech enterprises had suffered such sanctions.
What's more horrifying than those stories from his previous life that he understood is that this world doesn't have the concept of monopoly.
Or, to be more accurate, the oldest form of monopoly was controlled by the system of Nobles.