That may look good on paper. Yet a 20-something student vs an academic surrounded by supporters and wielding power and influence, it's only ever going to go one way.
I've personally been on the wrong end of it. After reviewing my options, noting that my supervisor had just been elected Fellow of the Royal Society in London, I decided to bite my tongue, complete my PhD, and leave.
The relationship was so broken I didn't even say goodbye to my supervisor (literally cleared out all my stuff from the lab very late one night), and I've never spoken to him, or had any contact with anyone in his research group ever since.
I have seen it go the other way as well.
Someone is in a position of power over someone else, and is exploiting that, and a response is to claim that this is a "wholly voluntary situation"?
Really?!