Libra is not about “peace” nor is it about avoiding conflict or being a pushover, trying to get along. It’s not actually about romance or wifey stuff either. None of that makes sense at all archetypically, nor does it mean anything.

Originally, Libra was not one of the constellations or signs. The stars now associated with Libra were the claws of the Scorpion. Later they saw it as two constellations, where one was “Chelae” – claws. That one was Libra.

Later on, there was a mistranslation. “There was a confusion with the translation of the words, zubana and zibanitu (meaning- weighing scale’ and ‘scorpion, respectively). The two translations of the words zubana and zibanitu led to the constellation the scorpion’s claws or Chelae Scorpionis. Therefore, in Babylonian Mythology, Libra started out as the claws of the Scorpio. Later when the Greeks looked at the constellation, they thought it looked like a set of scales held by Astraea or (Star-maiden).”

So Libra, if you take its full history and mistranslation into account – is somewhere between the claws of the Scorpion that killed Orion and the Virgin Goddess’s scales of justice, but it is not actually an entity unto itself.

Consider all these quotes, from various references:
“The zodiac (a Greek word meaning “circle of animals”) were devised by the Neo-Babylonians. 
““The fundamental factor in astrology is the identification of the heavenly bodies with the chief gods of the pantheon.”
“Libra is the only zodiac constellation that represents an object, not an animal or a character from mythology.”

Conclusion:
Libra is not an archetypal energy. It is an inanimate object wielded by forces of LIFE and nature belonging to the other signs. Its presence in astrology is the result of mistranslations and a need to force symmetry, but it is not inherently meaningful.