Bob,
An A scale mate told me a few years ago how B scale came to be. The company came to the pilots and said "Hey guys we need to cut costs, this won't effect you but we want to hire all future pilots on a B scale".
Said A scalers said " Well it won't effect us so who cares". Unfortunately they didn't recognise the the thin edge of the wedge driven by a management with no scruples.
Chuck.