If it is a "fair use" to run the business using pirated books, does it mean that it is "fair use" to use pirated software as long as you don't distribute it? Wh

If it is a "fair use" to run the business using pirated books, does it mean that it is "fair use" to use pirated software as long as you don't distribute it? Why pay for copyrighted works if Zuckerberg downloads them for free?