Sorry, but your statements only go to demonstrate your ignorance on the subject.
Any brand, media company, ad agency or whoever looking toward the future certainly will be concerned about the mark-up structure of their mobile assets.
Sites created based on the W3C's standards regarding the separation of content and mark-up, a standard which promotes device-independent accessibility, are positioned for the future and will require less recoding as mobile browsing applications change and evolve.
So, yeah, companies that want to spend money coding and recoding their entire presence every eighteen months may not care about design practices with an eye toward the future.
Smart and savvy CTO/IT managers, etc. will ensure that their company's web assets are cutting edge - not only for future compatibility issues and search engine optimization but because up keep and maintenance will cost much less.
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