[ADSigMel]

Quid pro quo means, "if we help you in your time of need, you should help us in our time of need" or "if we vote the way you do on some issues that are important to you, you should vote the way we do on some issues that are important to us." It does NOT mean "if we give you money to feed your starving children, you should vote the same way we do on matters of foreign policy." That's not quid pro quo. It's bribery - money in exchange for votes.

Furthermore, quid pro quo is simply another way of saying comity, which is not a formal requirement for doing business in this world the last time I checked. It's always nice to return a favor, but it's certainly not technically wrong not to.