If you price a book above what I'm willing to pay for it, I'm never going to buy it. Ever. If my willingness to pay is "$0", then you can't even argue that the creator has lost revenue if I pirate it. I was never going to buy it - it's too expensive at any price.
You can make the argument that capitalism should exclude me from ever being allowed to read it, because my willingness to pay is below the seller's willingness to sell. Fair enough.
However, it's pretty tough to calculate actual economic damages here - I was never going to buy the book, at any price. And I haven't deprived anyone else of the ability to buy the book. You might say to me: "But you are clearly in the target market - you wanted the book enough to pirate and read it." I disagree - by definition, the target market must consist of people who want the product enough to pay for it.