What am I missing? Why would a vendor brief a competitive intelligence firm?

While an AR director, each time I received a call from a competitive intelligence (CI) firm analyst requesting information, I would politely decline. When asked why I had declined, I would respond “Why would I give you information that you will turn around and give to my competitors?” This CI types often tried to persuade me by suggesting that I did not want them to have out-of-date information because that could cause them to inaccurately inform their clients. “Hmm,” I would answer, “wouldn’t it be better for my company if you were giving my competitors and their sales representatives inaccurate information so they would be less effective in stealing sales from us?”