Setting products and product performance aside, the primary resonsibilty of a company/business/organization is a profitable return to its owners/shareholders/investors.
Bose may be a private company and financials unavailable, but maybe their balance sheet is in far better shape than their competitors.
I would suspect that globally, the Bose "brand" is very recognizable and generally associated with quality.
I would also suspect a great deal of inustry envy. Bose is probably doing something right by their owners/shareholders.
If you were to invest in an audio company, would anyone invest in a company other than Bose?