"You were put here to protect us / But who protects us from
you"
--KRS One
Lela said:
Okay adventurers, enough's enough.
<snip>
Adventurers have money for a reason. It's there to help them help the innocents more. It's there to allow them to fight for the lives of others without having to worry about digging wells to feed our families.
D&D kind of assumes 2 distinct economies-- the adventurer's economy, and the common economy. You're making an appeal to the latter to justify the former. Sorry, but it doesn't fly.
A skilled craftsman (not a farmer, mind, but a glassblower or master smith) earns half his check in gold pieces per week of dedicated work (PHB, pg. 72)-- the town's master craftsman with a +12 check (assuming 10 ranks and a +2 mod), could expect to earn about 10 gp. per week on average (assuming he takes no holidays, that winds up at 520 gp
per year.
So, we can surmise that your average adventurer makes more on his 1st level adventures than a very well-to-do commoner (meaning, non-nobility) does in a year.
Untrained laborers (like well-diggers) earn about 1 sp per day (PHB, pg. 72), and as they almost certainly take no holidays, that pans out to almost four gold pieces per year.
Four. Almost.
So in order for the PCs to adventure "without having to worry about digging wells ," we see that the town would owe them approximately 2 gold and 4 silver per adventurer as a six-month retainer.
If the town wishes to pay out their adventurers with a higher level of status, they would need to fork out about 260 gp per adventurer for the same six-month period. Most likely, they'd pay out monthly (since adventurers often don't make it).
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That said, if I were the townfolk, I would shoot myself in the face with a heavy crossbow before I'd ask a priest of Hextor for help with *anything*. Nothing against the Story Hour or the character, he's great, but Hextor is not nice, and neither are his priests.
Now if you're the king, you're awful glad the Hextorians are the ones forcing your peasent levees to hold their spear-hedge against a calvary charge, but other than that? Fuhgeddaboutit. Lawful. Evil.
In fact, I'd send a message post haste to the nearest temple of Heironious mentioning his presence, and seeing if I couldn't get some kind of "race to save the town" brotherly competition going.