She might reach out to other politically-minded friends or join a political student organization.
I previously questioned how philosophy can create tangible change in the world, and after reading this hypothetical, I think I better understand how it could potentially do that. However, I think its potential to drive change is largely dependent on the individual. We can't expect that everyone that has had a philosophical education will do something to spur significant change. For this reason, I'm still skeptical on whether or not philosophy can truly change the systemic issues of the world.