I don't know if it's been suggested before as I haven't seen any recent threads, but has SE considered this before or answered this question in the past?

Adding some kind of gil rewards to the Frontlines roulette and a smaller one to the maps seems like a good idea to me. That way players who focus on PVP a lot can obtain some gil directly for playing a lot. 2-5k seems fair, maybe give the same reward regardless of 1st-3rd place.

Yes I know you can turn wolf marks in to gil, but I'm suggesting adding an additional reward to PVP to make it more worthwhile to play.