'who is' the real idiot?

after finishing dostoevsky's the idiot awhile back, i've since been thinking about it, and i'm drawn to make parallels between that story and the much more famous (at least in the u.s.) atlas shrugged, by ayn rand. dostoevsky's prince myshkin loses faith in humankind and is destroyed by it. rand's john galt loses faith and he rejoices in it.