Seem to recall Acorn actually hoping that "a good product will sell itself" and not needing to compete. Somehow that failed miserably even though RISC OS was years ahead of Windows and MacOS in many areas.
Today RISC OS is having to play catch-up and most definately needs to compete and be pushed on the market. Hopefully the day will come that there will be tens of thousands of RISC OS computers sold a year instead of a few hundred, then RO will start to have a chance against the big boys. Until then there's plenty of work to be done.