What's that saying???

In it for the money? What's that old saying?? "We have already established your profession, now we are haggling over a price..."
Someone said that to me and I wasn't sure what it meant, you know, I heard it somewhere, I don't know if it is true, I am just repeating it, that you are a whore, could be true.. Maybe... Just heard it somewhere...

P.S.
In 2016, Linton self-published a book about her experiences in Zambia, titled In Congo's Shadow, co-authored by Wendy Holden. Linton withdrew In Congo's Shadow from sale after many readers objected to her portrayal of Zambia. The book has been criticised for its inaccuracies and promotion of the false narrative of "the white saviour". She later apologised for causing offense and promised to donate all profits from the book to an appropriate charity. The Zambian High Commission in London condemned her for falsely presenting Zambia and for violating the confidentiality of children with HIV by publishing their pictures.