If you read stuff by the pro's, even good ol Arnold, you'll see that they do not lift nearly as much (kg) as they are capable of lifting. Intensity, technique and variation in routine gets much better results than pushing out a few reps of the heaviest weight you can find. I have been body building for about 2 years now and started out like that, as most do I guess, but have changed dramatically in the last 6-7 month by doing things properly.
My suggestion is go read, then read some more, set your own goals/strategy and don't try to copy/compete with others.
Personally I wouldn't bother with most personal trainers at gyms either, some of the stuff I see them do with clients is a total waste of time. They get new clients every other week at my gym, which says it all really. Edit: I guess I can't tar them all with the same brush, but the ones at my place are money grabbing wasters.