Is there a sin or impermissibility in advertising and promoting free-range sheep for a fee, which includes photographing and displaying them on social media, and organizing auctions for them at prices reaching hundreds of thousands?

Purchasing sheep at exorbitant prices merely for pride and adornment falls under extravagance, squandering, and wasting money, which is forbidden. This is because it involves spending money in ways not sanctioned by Islamic law, and due to the Prophet, peace and blessings be upon him, saying: "He forbade idle talk, asking too many questions, and wasting money." This undermines the interests of people, for which Allah made money a means of support. It is not permissible to advertise or promote such extravagance, as it constitutes cooperation in sin.