an extended social group having a distinctive cultural and economic organization above average in size or number or quantity or magnitude or extent
At large means '
in general'. In your example it contrasts the wider society with the smaller groups that precede it. Its removal would to that extent diminish the impact of the sentence.generally: Society at large will benefit from this. A person who is at large is
not in prison: The escaped prisoners are still at large.
Society at large demands transparency which may foster trust and legitimacy. The bearers of such costs can be either particular individuals or society at large. The role of the social partners, civil society at large, and social dialogue are paramount. At some periods, this view produced an extreme prudishness in society at large.
The other use that was from the song that you quoted society at large, community at large, the world at large, in this case at large means "as a whole," it means comprehensive or in a broadest sense, at large. So those are the two, probably most common meanings of at large, that we would encounter today.
The Ki Society> is an aikido organization founded by Koichi Tohei in 1971, while he was the chief instructor at the Aikikai Hombu Dojo.
The official Japanese name of the organization is Shin Shin Toitsu Aikido Kai (心身統一合気道会), but it is also known in English-speaking countries as Ki Society.
Its foundation reflected Tohei's differences with the Aikikai, and his own emphasis on developing the concept of Ki.
Students of the art are graded in Ki and Aikido classes.
Tohei's Ki lessons come from Shin Shin Tōitsu-dō (心身統一道), meaning the way of realizing the [original] unity of mind and body.
The martial discipline of the art is frequently referred to as Ki-Aikido, particularly in the Western world.
