"The BBC that began broadcasting at 6pm on 14 November 1922 was not the British Broadcasting Corporation of today. It was in fact the British Broadcasting Company and was made up of separate stations around the country operated by different companies."
In my understanding of the complex history of wireless/radio G Marconi's own business model was point to point communication disrupting the telegraph companies with the new and remarkable feature of being able to communicate with ships at sea. Remember that Marconi was Italian-Irish and his mum happened to be a millionairess with access to the highest levels of the British establishment (this is all 1900s, so before the Irish Free State). So immense investment in long wave point to point transmission by spark transmitters turning over to thermionic valves in 1920s or so.
Broadcasting was a sideshow for him but was central to the electronics startup scene in the US and UK. You go from homemade components in the immediate post war period to manufactured radios and then to consolidated electronics combines in about 15 years.
The early period was full of mavericks and slightly quixotic people. Later into the 30s you get the David Sarnoff's and consolidation.