Who is Mr. Baynes, a.k.a. Rudolf Wegener from The Man in the High Castle and what is their importance?

Mr. Baynes comes to the PSA pretending to be a Swede looking to sell injection molds to the Japanese government. However, Baynes is a member of a group of Germans and Japanese who do not believe in the direction of the current government and want to stop the Germans from practicing inhumane activities.