He is one of the founders, but no longer has anything critical to do with the company. He could, if he wanted to, take some role. It would be very very minimal though as at this point he is a low man of the totem pole.
It's the way of business. Just because you were there at the beginning, doesn't mean you mean much in the end. He'll always be the core of that company in the sense that he built it with his bare hands, literally. Unfortunately though, times changed and so did positions.
Just look at how much Jobs' position changed over the years. He got kicked out for Christs sake lol