She is paid to take doctors on dinner dates, woo them and give them 'free samples', and ensure that they promote her product over all the others. She's admitted to me that she regularly has sex with her clients - and that she's a part of a larger team that covers the entire German market.
Its such a normal, accepted practice, that my surprise at her frank attitude about it was met with a "well, duh, how do you think we stay relevant in such a competitive market?" response ..