I just don't see how Kabuto is any different. You seem to just be calling him an Oro copycat just because he uses the same powers as him. Which, I don't see how that's any different than any other character in the series. Most of them are straight up in clans where they all have the same powers.
Does he? Or is that just Tobi's dream.
I don't think Madara has actually explained his motivations yet. Although he seems to be working with Tobi, that doesn't mean they have the same goal. Just like Paine was working with Tobi and thought the plan was completely different from what it actually was.