Exactly and the incentives allow them to max their revenue if they behave rationally, meaning choosing transactions with higher fees. But now there's a parallel market outside of the protocol that directly competes with financial transactions in which 1 sat is not worth 1 sat anymore: pay a miner in FIAT and they'll mine a full block of JPEGs for you, without any financial transaction because the JPEGer knows they can "resell" each JPEG from that block at a much higher value.
It doesn't break the software, but it changes the incentives for sure, especially if it lasts.