Earlier quoted context omitted.
I agree that ads on ugly 10-lane highways don't really detract from anything, but this is not the case with the cities this organisation deals with. They are mostly historic, pedestrianised cities in England where (especially digital) advertising would be of serious detriment to the surroundings, which is what is being campaigned against here.
That makes sense. I wouldn't want ads or anything else ugly in a historic area, but also this is normally something you combat locally. It seems like this site targets an oddly broad audience.
However, I think they're targeting everywhere in the UK, historic or not.