I have seen landscapes where the photograph went the other way, and had piles of logos in them. However, most of the time this is only in the case where it is old logos, such as a photograph of a museum like setting, such as a replica general store in a pioneer village for example. For what ever reason, somebody might be offended by a FORD logo on a new car, but not an old model T.
So a landscape shot of Woodward ave in downtown Detroit during one of their annual "dream cruises" where all the older cars cruise up and down "the strip" should not offend anyone, but who knows anymore. And yes, for the record, I do think the skyline of decaying Detriot makes for a very interesting landscape. Just look at the various photos of abandoned buildings and factories there. Stunning and sad all at the same time.
One thing I do suggest for determining "rules" is to visit in person and look at as much art as possible. All art, all mediums, all ages, from museums to modern art galleries to outdoor art fairs. Some rules of art are timeless and universal regardless of medium, other "rules" that are newer you can get a good sense for by looking at moder commercial galleries. At the very least, you can get a sense for what sells, what people are actually buying and like.