This last category has led some to accuse the straight nonfiction list of being a useful fiction, designed to give publicity to books that would otherwise fail.
The last category led to some accusing straight nonfiction list of being a useful fiction which was designed to give publicity to books that wouldn't succeed.
The last category never led to some accusing the straight nonfiction list of being a useful fiction which wasn't designed to give publicity to books that wouldn't succeed.