If by 'sense of entitlement' you mean I feel I have some intellectual rights over a book that's my creation alone, produced in the course of my commercial work then... yes, you're right. But I don't 'work for free', any more than a shopkeeper who's the victim of theft sells goods for free.

Freetard drivel about 'infinitely reproduceable objects'  doesn’t impress me much frankly. Why don't you just write 'if it's easy to steal and I know I won't get caught then I will steal it and screw any writer who hopes to earn an honest living along the way?'