"Well, don't make things that serve no other purpose, but - say there are five hundred people who need morphine varying amounts in a given year, which is a number I just made up. Assuming everyone is either apprised of the risk ahead of time, or in so much pain that someone else has to decide for them, the choice is pretty straightforwardly between giving a hundred people an in-most-cases-temporary problem that sounds much less unpleasant than receiving surgery while merely blind drunk - itself not a risk-free painkiller - or torturing five hundred people who would have preferred the risk. I... think this is fairly straightforwardly in favor of making morphine as available as you would with any other drug, and just peppering it with warnings and maybe not giving out too much at a time to anyone who isn't themselves dispensing it."
"Alright, I'll pepper it with warnings and sell it at the usual rate for ingredients-plus-time... Which would make it about half a seo per pill. I'll need to go give that surgeon I sold 50 to a refund and an apology."
"Or you could mark it up when selling to surgeons in quantity so they lock it up and don't overdo it and if they skimp on the warnings you'll still be a more appealing source," shrugs Aya. "Although that won't last if any of them come by here."
"Yeah, that won't work long-term. What if I warn anyone I sell to in bulk that if they use them irresponsibly I'll either stop selling to them or start upcharging? And that I'll make sure any blame falls on them, since they were warned pretty thoroughly. And send someone around once in a while to surreptitiously check."
"If my medicine keeps getting more popular I'll need more help eventually. Might as well start looking early. I'll want to pay them hourly, not weekly like you. Do you think I can get someone attentive and trustworthy enough to run a storefront for a fifth of a seo per hour?"
"There will be a lot of Aelare-blessed slaves abruptly looking for work very soon. I'll see if I can grab a bright one."
She goes to his shop and waits if he's busy.
When he's done and the lady and baby are seen to, "I'll see if I can come up with something that's safe for pregnant people. In the meantime, I've come to give you some of your money back. I just found a much cheaper way to make benzene, which is the most expensive intermediate ingredient in morphine. It's still safe, it's the exact same stuff just made in a different way. But it wouldn't be very fair to charge you so much for buying it a little too early. From now on, the cost will be half a seo per pill - and here's 45 seo, just as if you'd bought them all at that rate."
"Just as a warning, I plan to sell these at my own shop. I understand you have to upmark it some, but keep in mind that it might come back to bite you if you upcharge too ridiculously. Is it popular, though? How many have you used so far?"
Back to her store. Time for more transmutation lessons with Aya whenever there's no customers!
While ingredient-shopping the next morning, Steel listens for rumors about slaves.
And she starts wondering how long she can keep trying to remove any heel tattoo she sees before someone connects the dots.
(Would contraceptives be popular? Probably. Too bad she doesn't know how to make them.)
Ingredients shopping. Medicine-mixing. Research and lessons.
Aya, in her spare time and while walking to and from the boarding house to cook and bring Steel food, finds and presents an ex-brothel-asset along with two other candidates for work in the shop. She's already given them preliminary tests of memory to see if they'll be able to handle the work.
Steel asks each of them a series of questions about hypothetical customers, presents them with a couple of moral dilemmas (would you push one person into a magic to stop a runaway wagon full of five people from falling in), and asks why they want to work here, to get an idea of each one's personality.
"Okay. I will hire all three of you for now, but only for a couple of hours a day. After a week, I'll decide which of you to hire permanently. Maybe none, maybe one, maybe all three. You'll be keeping shop mostly, but there will be some cleaning and carrying stock around. Pay is one fifth of a seo per hour. Sound good?"
Over the course of that week, Steel spends a fair amount of time watching them go about running the shop. Preferably when they don't realize she's watching. At the end of the week, she gives them a surprise quiz on the various medicines, with a few tricky questions that require some actual thought and not just memorized facts.