What's the point of listening to a rock CD or rock station at low volume at work? Why not just turn it off or change it?

Why do some people, when working, feel the need to listen to rock music on their FM boombox at low volume?

The reason for low-volume is simple: they’re at work, and cannot play anything at a high volume. Okay, so that’s logical.

But… why rock music? Rock music was designed for high-volume… so why do some people feel “comforted” by it on a crappy little radio at low-volume? All you can hear is the electric guitar and nothing else. All rock music sounds the same at low volume: just repetitious electric guitar.

So why do some people still turn the low-volume radio to their favorite rock station while at work?

What are they getting out of it? What possible comfort or enjoyment comes from that?

Is it possible they’re just afraid of their own minds’ silence or chatter, and need noise to cloud it up? Is that what’s going on?

And if they cannot play high volume sounds, but still need something to listen to, why not find songs that actually still sound good at low volumes? That would be old-music or acoustic. Rock might be someone’s favorite genre, but what point is there in trying to listen to it if you can’t even hear the lyrics?