@gregger it's not really that, it's more that they're desperate. A lot of people in the village are sick, including these people's family members, and they know that this person can cure them but won't. What they are doing is perfectly reasonable and understandable in these circumstances, if someone had made a cure for COVID but were hiding it, you can bet that the government would be knocking on their door, potentially forcing them to make more if it reached that point. That said, our MC's reaction is also reasonable, it cost so much mp to make it that it drains her for the day, and it's not as though these people are being all that polite and neighborly, she has good reasons for not making more.