It looks like blockchain might be used to allow people to buy and resell ebooks. For example I could buy an ebook from my brother at 80% the cost of a new one and even if my brother pays Pearson 10%, he wins because he made money he otherwise couldn't have, Pearson wins because they made money they otherwise wouldn't have and I win because I got a nice discount on my book.
Without this system, I would pay full price and Pearson would win even more but my brother does not win and I do not win (as much). This new system lets more people win and Pearson rightfully sees that if they get a tax on every trade they are better off.