First of all we must understand transfer of TCredits to whom on what conditions.
Ok, transferring or gifting TCredits to PSAs / CSAs depends on their individual achievements, reaching EA status, about to set up SO, etc.
Go to Genealogy last tab & click "Transfer TCredits" and you will come to know.
The benefit is only to initiate affiliates in your team.
Make them understand the participation of Price Benders' Auctions.
If one found comfortable, he will definitely set SO, and you made a sale, that is your benefit.