Here's the deal: I was playing as Rome, owning the faces off of Carthage. I had seized their two provinces they had in Italy, all of their islands, and six of their mainland territories. I had also been annihilating just about every army and navy they had, adding up to a 67% warscore in my favor. When I started to get low on manpower, I asked for their islands, valued at about 45% warscore. They declined. I then asked for their two Italian provinces (25%). No dice. I asked for one island (10%). Nope. Finally, I asked for ONE gold coming up to a grand total of 1% score. THEY REFUSED!
So, my economy ended up getting so totalled I accepted one of their many White Peace offers. WHAT DO I DO TO GAIN STUFF FROM SUPERPOWERS?