Man, that was a rude awakening. I always thought I lifted pretty well for my weight, I'm just in between intermediate and advanced. Kudos to you for being in the elite/ advanced category.
I always tell people that if they can lift their own body weight in most lifts, they're good, except for deadlifts. Deadlifts depend a lot on back problems. If you're injured or suffered a back injury, your deadlift will most likely suffer. Most people can't lift their body weight in many lifts.
Beyond that, I try not to get discouraged if someone lifts more than me. As with all things in life, there is always someone better and someone worse than you. Lifting is very mental. If you get in the gym and get psyched out because you see monsters (or small people like me lifting tons), your lifts will suffer that day unless you can see past it.
Some food for thought. Much like the fight or flight response, when you lift, epinephrine and norepinephrine get released into the blood stream. The functions of these catecholaimines in the muscle are as follows:
-increases force production
-increases metabolic enzyme activity
-increases muscle contraction rate (if you can contract faster, you can contract more, which means you generate more force. Without getting too technical, muscle fibers contract many times over during a single repetition of a lift. It's not just a one time occurrence per rep.)
-increases blood pressure and blood flow
-increases energy availability (in the form of ATP in the blood stream)
-augments the rate of hormone secretion such as testosterone
Ever wonder why you can lift easier and sometimes harder when you're pissed off, or when you're really psyched up? Now, you know why.