The "who" is very easy to realize.

The "why" is not very easy, but to get paid you must be a member of an exclusive club, where various shenanigans take place, among which, the most frequent ones are:

(a) merit cycling between the members,
(b) abnormal, kinky, sexual favours,
(c) every type of perversion is a bonus,
(d) some other things that I could tell you, but (1) the other members will likely torture me for this and (2) I will never be found in order to talk about what they 'll do to me.