It's like killing a spider in the house. Killing it instead of taking it outside doesn't bring me any benefit the way eating a chicken does, so why kill it? Just like putting the camera rig on an actual beetle for the demo doesn't bring a benefit, so why do it?
I think this is just a reflection of your personality. Respecting nature, small or big and taking the time to give it space, let’s you value and organise your life in a more balanced fashion.
That’s only true if your time has no value. Killing is faster. Also, as someone who has gotten multiple infections from non-venomous spider bites, I can tell you catch and release is riskier than killing.