Value of Life, Again

Yeah...You are right..Life is a biological concept. Everyone has to have a very precious ...bestowed life...It's definitely irreplacable.
Of course everybody knows life starts from the moment of conception and of course many people know that law does not allow unborn baby to hold personhood...I know life is a biological concept, but at the same time life should not be regarded as it is.
In this respect, life should be regarded as social rather than biological concept I may say... I assume you put too much emphasis on life of individual body.
Everybody in a civilised society knows individual unit or body is first and foremost important, should be protected by law at any time. But from time to time it is something that has to be sacrificed in the name of public interest. If one's life were useful for helping other's life more than one, one is worth being sacrificed.
Kamikaze turned out to be a worthless act, but at that time, young people believed its beneficial for saving Japan, Japanese people, the Emperor, even their family. So they did.
If someone's life is useful to save tens of thousands of lives, its worth sacrificing it. Death does not mean anything in itself. Death of serial killer brings about general applause among ordinary citizens.
Death of very good doctor who saved tens of thousands of patients brings about thousands of sad cries around the world.
Death of unborn baby causes sadness in its parents, but they can keep it in their minds till the end of time.
Death of very old people causes sadness among those who know well, but still they can give it up as a matter of natural consequence.
As death means always in many ways. A value of life is not equal and should not be equal, either. And in a natural consequence of this argument, there is a difference in weight of life. So if you believe kinds of communal society is an ideal, its a ricecake drawn in a paper( which means something impossible to exist).
Thus I conclude it's the right form of society for us to be exposed by a very sever struggle of life. And I believe this real world we live materialise this idea. So I want to accept it rather possitively.
... I'm going to write about relationship between civilisation and war later...