conductors and insulators

as i had some technical problems, i couldn't post anything for a long time. sorry for that!

Well, with reference to the title, "conductors and insulators", i think that may be looking at the type of people in the society, our ancestors would have come to a conclusion to name the materials as conductors and insulators.
i conceive it this way. Those who are not useful to the society were called as insulators, i mean those people who don't take responsibility for moving the society and the whole human kind forward are these insulators, and the vice-versa, those through whom the society is moving and benefiting were called as conductors.
Slowly, i believe that this concept got extended to the materials later...now what do you say?

so whom do you think were called as semi-conductors?