Ha! You nailed it with "copyright is not a moral system, but a practical one".
It was created to essentially force a means to an end, which was encouraging authors to create more works by enabling them to not be ripped of by UNSCRUPULOUS PUBLISHERS STEALING THEIR WORKS.
The ultimate irony is that the unscrupulous publishers have now bought enough american (read USA) politicians as to be able to jackboot the rest of the world into enforcing the reverse.
The USA knows full well why everyone but their corrupt lick-spittles (past and present) despise them, which is why they passed their internal law that allows them to offensively invade anyone they even think is developing equivalent military technology. Oh, and let's not forget the law they passed that requires them to invade the Hague if an AMERICAN (read USA evil-do-er) is ever indited for a war crime.
Oops, I wandered off-topic...