Amaro Koberle

Murdering someone destroys their scarce property (their body  in this case). Copying something using your own property leaves the original totally untouched.

All that being said, I think crediting people for inspiration is good form and should be part of common polite behavior.

Copyright is routinely violated without consequences anyway.

To keep someone from copying your work you have to infringe on the private property of that person by claiming an exclusive right on prohibiting his use of his privately owned copying medium to instantiate a certain pattern.

Intellectual property is a contradiction in terms because information isn't scarce the same way that private property necessarily must be.