I've come to realize that it's a linguistics matter more than anything else. It's like this: depending on the musical style/language you use, you can make use of devices that people have a common understanding of, so that you can pursue more complicated "meanings." This is obviously harder since you need to learn a musical vocabulary and be able to use it effectively. So, it's not about beautiful or not, none of that matters, to me it's basically either you write in a language people can read and interpret complexity, or you go into a variety of shades of compromise. In reality it's always a kind of compromise, but you can still play it extremely safe if you feel like it and just use very established idioms and be totally OK in that regard.
Otherwise, if you write something that goes totally off the rails, it's fine, but it's a lot more direct as to what people can draw from it, often just simple emotional reactions save for the people who are also well versed in interpreting meaning out of otherwise random noise. And then it obviously isn't random noise anymore if you frame it within a structure, but that's pretty inconsequential all things considered.
It goes without saying that this is all from the perspective of the would-be listener. I think it's OK to make that a focus too, but it's also OK to just do things for yourself and yourself alone. Sometimes seemingly "random noise" is just the thing you need to get out of an otherwise too-structured headspace that is bringing you nowhere. Just like you would switch painting styles to focus on different things, or sculpt different forms. It's not a black or white thing, but a sliding scale of priorities and values and you need to decide where you stand on it for each individual piece (or moment, even) when you write.