How do you prevent this idea from being corrupted?
You may have good intentions, or you may be a marketing department in disguise. Regardless, this sounds like allowing adverts into the Fediverse via the back door.
The majority of the internet is dedicated to buying and selling items, why not try enjoying this tiny space of the internet that is free from consumerism? Try making tomato sauce and sharing recipes instead of comparing bottles that are all likely made in the same factory anyway.