I don't see the problem with that balance. You shouldn't be hoarding cheese as an adventurer for healing or for selling. Something like a potion should be used for healing and should be appropriately expensive.
That said, I agree gameplay is more important and economic simulation, I just don't think the example was the best. It's already off that in games like Skyrim we collect random trinkets until we can't carry anything else and sell it all to any random shop keeper. It's weird and, to be honest, not actually fun. (Mildly hot take.) Finding and selling things that are actually rare is fine. Like weapons, gems, etc.
Because as an adventurer you're not a peasant. You're an adventurer. It's a high risk high reward profession that's difficult to get into.
I remember after I left the movie as a teenager with my parents two older dudes were bickering about whether poor people in our actual world are able to escape poverty or not if they work hard.