People don't know and people don't care.
Many people do know, and those who value the scriptures do care. The skills, qualifications and reputations of the translators are a valuable gauge of the fidelity of the translation. Quote from Tower Watch Ministries, who cite Ray Franz, who as a member of the Governing Body had first-hand knowledge of the translation committee and its members:
The translators of The New World Translation were: Nathan Knorr, Albert Schroeder, George Gangas, Fred Franz, M. Henschel
"Fred Franz was the only one with any knowledge of the Bible languages to attempt translation of this kind. He had studied Greek for two years in the University of Cincinnati but was only self-taught in Hebrew." ["Crisis of Conscience"; by Raymond Franz; Commentary Press, Atlanta; 1983 edition; footnote 15; page 50.]