But he didn't believe it. It was his job as the litigator to say it. My OP focused mainly on how whenever Data has exhibited emotions, Troi recognizes them as if they were any other person's. Data's emotional awareness, once he has a recognizable one, is the legit real deal as far as they are concerned. As such, he's somehow got a real consciousness. Therefore, it could arguably have the same potential as anyone else's to develop into the weird supernatural stuff we see in Star Trek, like V-ger did.