Are charisma, dignity and ferocity used for something besides NPC dialogs?
Besides the answers you can give in some dialogs (where I imagine that a kind of "roll check" is performed to see if it succeeds / fails) what are these atributes used for? Do they unlock special missions or items?
Solution 1:
Boon Givers can be convinced to give you a boon for free using a personality speech option.