Yes,indeed society has been wrong on many things due to limited knowledge and research.
Even todate, mankind has continued to do many things wrongly. Racism, modern slavery, sexism etc, are still rife in many societies and countries today.
Therefore, there’s the need to revisit our policies, theories, and the way we live.
Animals suffer just like humans because they have a feeling. Therefore, must empathize with them since God gave Mankind dominion over them.