The academic publishing industry utilises researchers as indentured servants, not only not paying for papers, but often charging for publishing.  Peer reviewers are also unpaid and act as the first, but not last gatekeepers of "acceptable" information.  If the people doing the work aren't paid, the information should be free and what he did was moral imo. 

 Wow.  Great summary, I wasn’t aware of his story.   I’m convinced that in the not too distant future we will look back on the copyright era as the medieval times.  Information can’t be owned, only kept secret.  Once it’s published, it’s public.