> but if they were/are objectively not, what does that matter?

It matters less for them, and more for you. Yes, we see them as horrible, but also yes, they see us as horrible people. In the end we're all humans, and we all work towards what we think is better, but the method and goal what "better" actually is obviously differs.

> Do they think that being a good person is something to aspire to? I don't think so.

Yes, of course they do, but their definition of "good person" differs between you and them. For you, decency is "good person", for them, ignoring decency is "good person", so of course they aspire to being a good person, whatever that means for them.