Any interaction designer worth their crust understands the important of context. An analysis of the situation, goals and identifying the user helps greatly in managing an interaction that is optimal.
Architects (as in building, not information) were early experts in context, but that seems so obvious. Most would not think of using residential materials or configurations for an office building or retail location. It just does not make sense. This sensitivity has been lost a bit.
Graphic designers need to understand context as well. Marketing materials must be crafted to work the sales process. They must be specific to the situation and audience. To many designers a brochure is just a brochure. Should the brand or company identity reflect the company and its mission, or should it specifically appeal to the clients and partners? The answer of course, is yes. Context needs to be talked about more by all designers.