[Nyororin]

I don`t know where you are getting your information about the content of the test... Are you sure you`re not mixing it up with the Kanji Kentei?
JLPT1 is still not truly fluency level, and the content is most definitely used by real people in everyday life.

Do you need it though? Unless you are aiming for a Japanese university or want it on your resume to get a job in Japan... No. You don`t "need" any level of it to get by in life. You could probably stumble and get by at the JLPT4 level. You`d sure miss out on a whole lot though...
It`s a test of ability. Not a requirement to speak Japanese or live in Japan. It isn`t necessary to take at all.

If the words and kanji used in the JLPT1 were never used in daily life, there is no way I`d have passed it.