Bounty's and Marks

I thought it would be neat to have bounty's or mark's in the leves that only give you gil and seals for hunting specific monster/mobs in dungeons and fates. For example, kill Savara for 10000 gil and 230 seals. It would give people a reason to revisit older dungeons and would help alleviate the gil shortage some people, who havent done any DoH or DoL classes, get. Yes I guess it could be farmed but maybe they could be like supply missions in the GC where it resets every 10 hours. What do you think?