Well it may also be the difference between needing to express uniqueness as a mechanism to display it to others. If I'm secure that I'm a unique individual, I may not need to express it or demonstrate it.
(which I don't think is quite the right construct for what it describes but they had to run the politics of the DSM to get something in there) you might
(1) think you are unique when you have a condition that maybe 3-5% of people have,
(2) try as hard as you can to "mask" your condition
https://en.wikipedia.org/wiki/Schizotypal_personality_disord...
(which I don't think is quite the right construct for what it describes but they had to run the politics of the DSM to get something in there) you might
(1) think you are unique when you have a condition that maybe 3-5% of people have, (2) try as hard as you can to "mask" your condition