Nietzsche discusses this in his theory of Creators. The extreme form, for Westerners is Christ. But the most obvious example might be Nietzsche himself.
From this perspective, the method of exaltation produces experts on the figure, who inject perspectives that normalize the figure but betray his message.
There is an interpretation within Christianity that the purpose of certain events was to dissolve the effects of written law on religion. According to those people, Paul (who wrote much of the New Testament) often reiterates this position in accordance with Christ's intent.
But the trouble starts because Paul is providing much of the text of the New Testament. So for many, his writings come to be taken as a form of written law, contrary with Christ's intent.
Paul weighs in on important cultural influences, and his interpretations have influenced decisions made throughout church history. For instance, it is not obvious at all that Paul's referencing gay men as a negative influence (1 Corinthians 6:9, [μαλακοὶ]) or his opinions about when women should speak (1 Corinthians 14:34) really matter at all. But people have used them as Law.
Christ, the originator of Christianity, may well have intended every nation to have its own cultural standards, with only observant Jews being subject to Scripture. And the religion that has spread the notion of a Book as the basis of a religion throughout the world -- a book full of writings by Paul which can be taken to state that God never intend Gentiles to be bound to a Book.
So the expert who took over the movement after the death of the exalted figure may incidentally be to some degree really a more powerful influence on history than some things actually intended by the exalted figure himself.
Just because that is such a contentious subject, I will give another example.
Nietzsche's own sister mutilated his legacy near the end of his life and after his death, and made him available to proto-Nazi interpreters. She looked at her brother's writings through glasses colored by her husband and his family and terribly misrepresented him to an entire generation, ultimately allowing the Nazis to present their ideas as proceeding from his own. But it is clear from his correspondence that he outright hated the notion of anti-Semitism and deeply questioned whether nationalism was a good thing.
One entire introduction to his thought initially published in his name, "Beyond Good and Evil", is in fact collected and edited by her, and creates a lot of contradictions with his insights published elsewhere.