Authorative drive is what makes software more inclusive. It can focus the resources and attention where its needed,

Where a particular groups think it's needed.

Let's take some examples. In the linux world, there are multiple DEs, with different GUIs and approaches on how to interact with a computer. People used to the windows look might feel better and be more productive in KDE, while people who are more used to phones might prefer GNOME. There are DEs that are very lightweight with resources, so that people with older machines aren't left out, and there are people who don't even like DEs at all, who might prefer something like i3. In the end, everyone can have something to run on their machines, and which they will feel more comfortable with, instead of a particular group of people deciding how someone should interact with a computer, and people having to use it the way they want, whether they like it or not.

Doesnt mean it has to be monolithic/monoculture. but a single product that serves 80% of everyones wants and desires is a better, superior product to one that tries to cater to and serve 100% to each, different individual.

I agree with that, and maybe we're talking about different things? The kind of diversity I mention is multiple projects aiming at 80% of different people, but coexisting.