Approachable not too geeky social scientist supports millenials to change the world

I have known Liz for over a decade now, and she is "trustworthy" in character because: (1) she does what she says, (2) she is unfailingly honest, and (3) generous to others in deed and act, which I've seen first hand. If your asking about trustworthiness in terms of someone being a risk or a threat, Liz is financially independent and responsible and her happiness is to affect and effect change more than any personal gain.