The neat part about modern RGB is that it's fully customizable- and you can turn it off. I set up OpenRGB profiles so that I can turn all the lights in my computer either off completely, or on to preset color schemes with one click of a button.
In reality RGB is just a super cheap feature to add that is a bit of a flashy upsell, which is why almost every gaming manufacturer adds it. You are under no obligation to use it.