Massive financing is not something that can be negotiated in just a day or two. Even after persuading the invited chamber representatives, they still can't call the shots.
Inviting these people, the main purpose was to have them relay the message to their masters behind the scenes.
No one would turn away from money, and even if they weren't interested in financing, this new business model could still attract attention.
What's more, within the enticing picture Hudson painted, banks were not only about making money; they could also control the local economic lifelines.
With such substantial "bait" laid out, if the true masters behind the scenes could still sit still, then they wouldn't need to be in the game.
Even if it was just to understand this business model, everyone would actively participate. It's not acceptable for no one to explore uncharted paths for emerging industries.