#Rewards don't have to be gold.
Rewards don't have to be gold.
Many questgivers would simply not have 50,000 gold pieces lingering around at any given moment to give players as a reward. Instead Give them (magic) items as rewards. Some NPCs might have magic items they're willing to part with. This way the players can't sit on a pile of treasure. This also gives you some control about the magic items they get. Yes, they could sell the magic items and sit on the gold anyway but if you give them items they're interested in they're likely to keep them. This also slowly teaches them what items they can use and which items they can't.
Alternatively, giving rewards like: Reputation, privileges or favors could also be acceptable. Giving PCs rewards specifically crafted for their character is fun. A new spell for the wizard, a special weapon for the fighter, you name it.
#Different types of quests for different rewards
Different types of quests for different rewards
Quests don't have to be given by questgivers. You could play into the backstory of the PCs, assuming they have written some. If the rogue has been in a gang in the past maybe an old enemy has shown up wanting revenge. Or a old friend is in need of help. You could still reward them by giving the players loot which they earned in combat. Teach them that the lord is not their only source of income. And they'll be less likely to push for every penny.