I am an author and I making my living from book sales. You're right, I'm absolutely obsessed with money, in the sense that I need money to buy food and pay my electricity bill.
> Robbing a bank and giving away the money is a decision not based on money or liability, but you shouldn't be very surprised you still get put in prison for it.
Quoting the other comment here to make my point.
AFAIK IA they did not give away the books, the books still were shared the same way as before, with DRM and expiration dates. They just temporaly removed the limitations of amount of books you can loan and increased the loan period with an initial max end date of June 30.
So, yeah, what IA did is pretty different from robbing anything, in unprecedented times of a global pandemic they provided access to a digital library the same way a public library which holds those books would in normal times.