People seem to be confused.

While this is my first post on this site, I've been spending most of my time reading some great discussion pieces on here since this site was first up. There's just one thing that is bothering me to the ends of the earth about some people's understanding of the engineers/SJs, in that quite a few of you seem to be under the impression that the engineers and SJs are two separate entities, when anyone who has even the slightest idea about the Alien/Prometheus world should surely know they are one and the same being. Just two different names have been created for them. Discuss.