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The answers to your question will depend on the airport, but I would say if there was any security it would be looking for prohibited items and not the 47 items they (and "they" could be anybody who had access to your luggage, not just the baggage people) took from people's luggage, and it would only be security coming into the job.

There have been many stories about employees being able to just ride the airport bus into the back door with the only security being asked to show their ID, and of course many stories about handlers being arrested, including two in Philadelphia a couple weeks ago for several years of pilfering.

I would guess in your case, either there was no camera, or they did not do it in front of cameras.