While all characters in Coriolanus act in the name of self-interest, most of their interest are ephemeral and lacking in passion. However, Coriolanus' mother Volumnia fervently pursues her interests which result in her triumph over Coriolanus psychologically. However this triumph does not bring successful conclusion. It sets the scene so that Aufidius can triumph over Corilanus physically.
Because Coriolanus is largely a stage of competing self-interests, it seems wholly unnecessary to acknowledge their centrality in the play. Most of these interests are ephemeral or situational, and are thus without true devotion. Thus however "enraged" particular interests are, they are rarely triumphant. However, Volumnia's self-interest warrants noting, as she is consistently resolute and passionately advocates her opinions. Her self-interest ultimately triumphs over Coriolanus psychologically, and in consequence leaves him vulnerable to be triumphed over physically.
Assumingly on account of the marginalized status of and opportunities for Roman women, Volumnia uses her son Coriolanus to satisfy her otherwise unrealizable longing for power. She makes her intentions of raising a warrior, as well as her value system quite apparent.
"I, consider-/ ing how honour would become such a person- was pleased to let him seek danger.....
