In industry today, the job categories populated by people from BCSS are thought of as resources, never as leaders. HCI, psychologists, anthropologists, social scientists, human factors and ergonomicists: all are resources.
"They," those who matter, the "leaders," design the system, then call in us, the user interface designers, the user testers, and the human factors groups to verify the work that has already been done. And, of course, the technical writers are brought in, at the end, to explain it. Notice the "they" -- them versus "us."
We will never make progress as long we are resources and not leaders. Resources don't discuss the business plan, the marketing strategy. Resources don't help decide what the product or service will be in the first place. Resources are called in when the leaders think they are needed. They do their job and then get out of the way.