I will not go into specifics and technical details into a parallel matter as the explanation will be too esoteric for the layman. But to put it into perspective, and a similar level of social fairness:
Temperamental (masungit:tagalog) people should be considered as insane as clinically depressed people. It is unfortunate that normal people don't regard temperamental people as such. They view it as acceptable and normal because a lot of people are that way. Perhaps if more people in the world are clinically depressed then there would be no need for treatments for it since it would be normal. Just because it may be normal does not make it mentally healthy. Just like clinical depression temperamental reactions can happen spontaneously, have triggers that are often unreasonable, and is a cognitive situation that "feeds itself further".
A parallel situation of ignorance is obesity. In some cultures being fat is regarded positive (in certain aspects) and it took some level of being civilized to finally recognize that obesity is a disease. Even if it is a disease, it is still normal esp. if you live in the USA. At least it is "recognized" as a disease, but on a micro level/societal/individual, some people still don't see it as a disease that should be treated immediately and with the same seriousness and urgency despite the fact that it is officially recognized as a disease and one of the primary contributors of mortality.
Going back to temperamental people, it may take a few more centuries before psychologists and sociologists realize that it is a disease and an insanity. For the moment, we relegate different forms of insanity to the minority. Including phobias and manias. Temperamental people fall under the "mania" category.
It is important that we call a spade a spade. I will NOT accommodate or be polite and say that we should not consider clinically depressed people insane (as society would want us to accept) but in the aspect of FAIRNESS, we should also consider "clinically temperamental" people as insane. Currently (as of 11/17/2010) there is no such term (clinically temperamental) as people have not considered it an illness/disease. But it is. And you don't know it yet.