They could've did more with it. For the majority of the game you forget about it doesn't really matter as much when you beat the dollet mission. The only things that affect it from that point on are random battles and SeeD tests. Once you've taken all the Seed tests you don't have anything to worry about affecting your SeeD rank. I would have like to see more things that would affect it in the game.

Also why is the d capitalized?