Sharing is good, yes. But sharing is when you pick something that's yours,
and give it to someone else. When you pick what is not yours, and use it/give
it to someone else/sell it, you are "stealing".
You can play around with the words, but the truth remains the same.
Also, as stated here
https://trisquel.info/en/forum/can-someone-give-me-compelling-case-why-i-should-use-only-free-software#comment-39211
Piracy prevents creation of new things. GNU exists because Stallman (and
others, not just him!) didn't stole UNIX from At&T, they created something
new, GNU.