It’s not either-or. There are situations where advanced riding will not protect you, but being more noisy will. Plenty of disciplined, advanced riders also choose to be noisier with aftermarket addons, especially on smaller bikes. It’s a trade off that riders make between increasing their safety and being less obnoxious. It’s reasonable as a pedestrian to be annoyed at those that choose the former, but you can’t just dismiss their decision on the grounds that it’s useless- that’s objectively false.