I can't say that my disability has helped my work, but it has allowed me to concentrate on research without having to lecture or sit on boring committees.
Yes, I guess you could say I am a loner, but I feel more lonely in a crowed room with boring people than I feel on my own.
I read Freud's Introductory Lectures in Psychoanalysis in basically one sitting. I decided to enroll in medical school. It was almost like a conversion experience.