One analogy this makes me think of with respect to mixing and mastering within music production is the idea of headroom. You usually want to leave your levels l

One analogy this makes me think of with respect to mixing and mastering within music production is the idea of headroom. You usually want to leave your levels low enough that the unmastered mix never goes above -6 to -3 DB, and in order to do that, you'll usually end up mixing a lot of your tracks significantly lower and a couple of tracks close to the ceiling. Putting something straight at 0DB is a no-no because you obliterate the headroom.