My question is about the meaning of 「ったく、銀貨５枚とどちらが割に合うんだかな」.
Context: A young boy came to the adventurers guild with a request but only had several silver coins(edit: if you read on much further you find out it was 5 silver coins). The guild master told the boy that he wouldn't send his members for such a small reward.
Before the young boy leaves an aspiring members of the guild accepts his request. The guild master (worried about the potential impact on the guild if the member dies, or is found out as this member has not yet received their license). He then tells someone else to go and save her, and the above conversation begins.
割に合う from what I understand (in this context) means "to be worth it". However, I don't quite follow what is meant in the excerpt above. Can anyone help?