If I manage to copy your wallet file, the bitcoins are mine? And that's OK?
Immoral? Yes. Unethical? Yes. Criminal? No.
I could care less about laws. So lets address the morality. You say it would be immoral for me to copy your bitcoin wallet, yet you condone copying of intangible property.
I own paper. I own a printer. I should be able to do whatever I want with them, including printing out copies of the latest bestseller and hocking them on the street.
So you are immoral. Excellent. I will be sure to never do business with you.