The couple, married since 2002, was handed the prize by bosses at the Gay, Lesbian & Straight Education Network (Glsen) at their annual Respect Awards at the Regent Beverly Wilshire Hotel, reported E! online.
Roberts and Moder were recognised for their work on 'The Normal Heart', a 2014 TV movie which depicts the rise in the HIV/Aids crisis in the 1980s.
Roberts starred in the drama and Moder worked behind the scenes as a cinematographer.
Bosses at Glsen, an organisation championing safe educational environments for all schoolchildren, said, "They bring a sense of stewardship, responsibility and consciousness to their humanitarian efforts and serve as wonderful role models."
'The Big Bang Theory' star Jim Parsons, 'Glee' creator Ryan Murphy, and Rose MCGowan also attended the event.