I'm following your logic. I just feel conflicted on how tasteful it is. Case in point the image is being used by some anti-capitalists as a "see, look how they profit on suffering". I think it's silly to take the angle to that extent though.
I don't think the display was really meant to be a sales scheme. I think they were just wanting to make a statement with the materials they had on hand. Just something about the corporate logos makes it seem a bit off in the back of my head. I don't think the company meant anything distasteful by it of course, but I still get a vibe of tragedy meets consumer culture.
And the mattress people are pretty well on the other side of the spectrum. They meant it to entirely be a marketing promotion and not a memorial at all. No grey area there, it was entirely distasteful.
I agree with all that.