I agree that it is probably impossible to maintain the economy around selling copies of a work when those copies are practically free, but making your works actually free in the current business models is giving up too soon.

There needs to be a transition from making money from unit sales to something else, and until that's sorted out I think having piracy being at least stigmatized for being wrong makes sense.

I think it's important for a creator to ensure that the experience for those who want to pay is as good as possible. Apart from that I don't think any amount of worry will help very much.