I don't know the rules behind the usage of "being". One of my instructors mentioned that "being" is almost always wrong when it appears in an SC choice on the GMAT...and that was good enough for me.
However, I did a quick search online for some resources, and came across the following, although these are not as in depth as I'm sure you would prefer:
Forms of "to be" -
An overused and inelegant idiom, favored by those who want to sound more impressive. It probably comes from "it being the case that," maybe with some influence from "given that" and "seeing that," but it doesn't make much sense. (Being as has the same problems.) Avoid it. Use because, since, or something similarly direct. [Revised 15 December 2006.]
Also, in Strunk & White's Elements of Style
, they offer the following:
Not appropriate after regard...as.
He is regarded as being the best dancer in the club. (incorrect)
He is regarded as the best dancer in the club. (correct)