There is such an importance when it comes to audio, doesn't matter what type of context it's in (i.e youtube videos, block buster movies, etc). Mostly because music/audio has this special way of making us feel something. For instance that one song all of us have that brings us to that one memory special to ourselves when someone else can listen to a song and feel a completely different set of emotions. An interesting experiment you can do is watch a movie that has actually scared you in the past and mute the sound. You'll see just how impactful audio is and how impactful it can be to place a setting.