If I "catch your drift" as far as what you mean by "places some grubby sheepherders above all other people", you show your thorough ignorance of Christianity and of the importance of the Abrahamic family story that preceded it,
Look, I've had western humanities, I know how influential it became. But that's the only reason it's important. It wasn't the first monotheism or even the first orthodox religion. It wasn't even the first to use most of the tales in its mythology, most of which were lifted from other places. It's so very interesting today only because it was successful.
As for "hacked and re-hacked" and politics. Sure, even the cleanest water will be tainted if it is poured into rusty vessels.
The work that the religion was based on was deliberately (and also accidentally and incompetently) altered over time.
The truth is that Christianity is a religion created by a subclass of an ethnic minority which granted them dominion over all the Earth. It might be some other things too, but that's what you have at the core. It's a religion of domination, control, and ownership.