If you notice there's quite a bit of "attractive" players around or "winsome" etc, all that is affected by Charisma.
Wild Animals I imagine are set to @hate players, so I think you'd have to code something specific that ignores high charisma or make a verb that allows you to get them to stop on a charisma roll. I'm not entirely sure if I agree though a wild dog wouldn't really stop for anything considering it's probably fighting for it's life and surviving Bansuporo, starving animals do very very vicious things. Like them damn dingos in Oz, stealing babies.
Just depends what you wanna do with your character.
http://www.sindome.org/about/archetypes/ has two examples of character-types who need charisma, and I know of at least two other current active PC's right now who are of still other types which benefit greatly from investments in charisma.
Also: Almost nothing in the game succeeds on stats alone. Creatures are mindless. Influence over them should depend on a specific (imaginary) skill, not on a direct statistic. The wrangling skill, maybe?