Quite ironically, Assange is being railroaded because he tried to avoid the rape charges, which led to his self-imposed Ecuadorian imprisonment, his current British imprisonment, and his future US and/or Swedish imprisonment. If he hadn't tried to flee, it's possible the Swedish charges would have been dropped after perfunctory investigation. The British would never have needed to jail him. The previous US administration would likely have filed minimal charges against him or sought a token punishment to serve as a deterrent to others.
Plenty of others have exposed government secrets. Many of them won Pulitizers for their efforts...
Like Snowden exposing basically the biggest conspiracy of government employees breaking federal laws ever seen?
Journalists win Pulitzers, whistleblowers get their lives ruined for exposing criminal activity. This is a common theme the world over.
So far you have failed to name any actions you see as inappropriate.
What rules are being bent? Which actions violate due process or equal protection? Can you name any specific issues?
[UPDATE] I'd like to expand on my earlier answer. It depends on what you consider to be "his situation" because Assange is in two separate situations: he's an accused rapist, and he is a publisher of sensitive government secrets. The problem is not that he's being treated any differently from any other accused rapist or from any other publisher of sensitive government secrets. The problem is the possibility that he is in the first situation because he is in the second situation.