I found
this to be pretty accurate:
“Asymmetric relationship. One partner (the beneficiary*) finds he is constantly trying to solve the other person's (the benefactor's) problems and is overly emotionally involved in the other partner's life — always waiting for a reward from the benefactor. The benefactor, on the other hand, is largely unaware of this and wonders why the beneficiary is so dependent and so sensitive to the things he (the benefactor) says.”
Relations of benefit are interesting, but kind of exhausting if you're the benefactor. And yes Numbers, I do think there is some sort of connection that can make it worthwhile. In the end it just comes down to the individuals involved.
*Semantics: Relations of Request (+/-) = Relations of benefit. I had to change transmitter to benefactor and recipient to beneficiary, but it's essentially the same thing (for those who didn't already know).