"To discover to the world something which deeply concerns it, and of which it was previously ignorant; to prove to it that it had been mistaken on some vital point of temporal or spiritual interest, is as important a service as a human being can render to his fellow creatures..."
John Stuart Mill, "On Liberty"
Kay Redfield Jamison, in her class book about depression, The Unquiet Mind, says that "manic-depression distorts moods and thoughts, incites dreadful behaviors, destroys the basis of rational thought, and too often erodes the desire and will to live. It is an illness that is biological in its origins, yet one that feels psychological in the experience of it, an illness that is unique in conferring advantage and pleasure, yet one that brings in its wake almost unendurable suffering."
But imagine if no one knows what your illness is, or if it is mistreated by the medical community. How much worse is it, when treatment is possible, but it is prevented or delayed by ignorance.