From what little the OP has said about her company I am willing to take a wild guess that she does indeed work for a large coproration (lip service paid to diversity, incompetent people hired to demonstrate it)- where you can expect this sort of thing to be very common.

I don't know about corporate America in particular, but corporate anything is a big pile of useless dipped in incompetent, where all the work is done by contractors who are also useless and incompetent. Because there is noone in the damn org that knows how to hire a competent techie in the first place.

So for me the OP's experience is more simply explained by working for an organisation that doesn't know how to hire engineers, not anything to do with diversity drives.