To what extent is revenge influenced by society's attitude in "The Cask of Amontillado"?

Montresor makes it clear from the opening pages of "The
Cask of Amontillado" that revenge is the driving motivation in his life. Montresor
claims to have "borne as best I could" the previous "injuries" perpetrated against him
by Fortunato, but when Fortunato resorts to "insult," Montresor can stand no more.
Perhaps the best example in the story of how society views the importance of revenge can
be seen in the interpretation of Montresor's own family motto. When Fortunato drunkenly
tells him that he has forgotten the Montresor motto, Montresor reminds
him:

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"Nemo me impune
lacessit."

Translated
from Latin, it means "No one attacks me with impunity"--without punishment. The family's
coat of arms coincides with the motto:

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"A huge human foot d'or, in a field azure; the
foot crushes a serpent rampant whose fangs are imbedded in the
heel."

It is obvious that
Montresor is not the first of his family to value the importance of
revenge.