Are MPs' interns being exploited?

Are interns exploited?
It's not just MP's interns!
I'm doing an internship because otherwise I'd be doing nothing, so it's good from that point of view.
BUT,
a recruitment agency thinks I could get £10/hour. Right now i'd take minimum wage for a job.
Another agency has offered me an interview to be a recruitment consultant on £20k per year plus bonuses of nearly another £15k. But i wouldn't get it coz i don't want it.
Maybe that's me being greedy, because I don't want that job and i'm not really in a position to refuse.
But my point is that in the face of this i'm actually working on £2/day travel expenses.
Are interns exploited? Yes