Of course they do. People have limited time and energy and can't possibly be expected to have a good enough understanding of everything they touch in their daily lives to be able to "understand" them well enough to have sufficiently calibrated bullshit detectors for them all.

Maybe you're an expert in ICEs and this was obvious to you. Would you notice if your cell phone charger was actually pulling 10 amps out of the wall instead of the 1 it was rated for? What about if your non-GMO strawberries were actually created in a lab? Your organic beef injected with hormones?

The whole point of having these standards is so that consumers can rely on them and don't have to independently analyze everything they buy themselves.