It’s all contained in the Domatic teaching of the Church,in the Catechism and other various doctrines.
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Rather self-servingly convenient for political power mongers, it seems to me.
Alas, it’s not such a tidy little consistent box from 300-400 years ago to now as is contended. Not by several light years worth of distance, at least.
Perhaps you can show the “self-servingly” in those who followed the teaching of the church.
Start with Mother Teresa of Calcutta and then proceed with Saint Francis of Assisi and perhaps you can go deeper into history and show us how “self serving” Saint John Chrysostom was?