Why?
Please read me carefully: I am not accusing you of resentment.
But I already excluded issues of finance and recognition in my conditions above.
So, other than spitefulness and resentment, what else might possess us to declare that if "anyone is free to copy and fully use" some work, then it's not worth doing?
Do you not feel the incredible plenitude and abundance of creativity that urges you toward generosity?
Is capitalism responsible for somehow poisoning us with the idea that scarcity is necessary for valuable endeavour?