“she was unpaid, yet she is suing for lost income, among other things?”
Later it says: “Though she was unpaid at Yale, she used the gig as a way to earn ‘potentially tens of thousands of dollars in perks and exposure’ that allowed her to be a global consultant.”
That’s probably what it means, but am not sure.
She’s basically a scam artist. She uses the volunteer position to give herself prestige so she can con others into paying “a Yale psychiatrist” to do stuff for them.