Me? I have none. However, they were under the medical care of a neurologist. Are you suggesting that he had no right either?From the perception of the man in Dr. Oliver Sacks' book, he had evidence that his wife was a hat. So in his view, yes, his wife was a hat.
From the perception of the woman with anosognosia, she had evidence that it was her son's arm. So in her view, yes, it was her son's arm.
Tell how these two people's views affected you. What do you have to gain, aside from stroking your ego, in telling them they're wrong? How do they benefit from you telling them they're wrong?
These are their truths. What right do you have to impose your truths upon them?
And what would you say to that poor man's wife -- who probably, quite frankly, would really like to be thought of as a real person, by her own husband? Or do you think her feelings should be ignored?
And by the way, I find your perception of what to do with an illness that happens to be of the mind somewhat odd.