The interesting question that often gets overlooked when lumping all these together as 'bad books' is why do some of these 'bad books' turn their authors into m

The interesting question that often gets overlooked when lumping all these together as 'bad books' is why do some of these 'bad books' turn their authors into multi-millionaires, and not others. For that matter why is it almost only 'bad books' that turn their authors into multi-millionaires. Ready Player One is no doubt badly written and Bad Art (full disclosure, I didn't manage to finish it), but it is also one of the more successful and beloved sci-fi books from the last 15 years and shouldn't that in a way make it a Very Good Book.