The OP's dryad isn't that bad as dryad faces go. She's hasn't even soft capped her charisma! She's got 13 dice base between Charisma 5, influence 4, glamour, and kinesics 1. That isn't that bad. Even a moderately optimizated face should be in the same range with tailored pheromones.
The problem with social skills typically comes in when the user's social skill roll is good enough that you can fool all the people all the time. It can rapidly devolve into situations like
this or sillier. Typically the GM has to pull out extreme measures to preserve any sort of structure to the game everything can be overwritten so easily. Generally those measures are to nerf social skills into uselessness.
To be fair, glamour does have comes with a downside, a "free" distinctive features. Thus, a dryad does have two levels of distinctive features. Now how bad that is varies wildly to barely or a death sentence depending on GM's whim. If the dude is prejudiced because dryads beat him up at school, that's a -2 to the roll which does help take the wind out of the glamour sails.