Given Disney's successful lobbying history (see: Mickey Mouse Act for copyright extension), they might be one of the few organizations who could enact some change to the patent industry.
Whether those changes would be positive (for industries outside theirs) is another thing.
While I agree with you, I think it's sad that we live in a world where you can patent "remaking old movies in 3D". It just feels like everytime a new gimmick appears, someone could just patent "remaking old <insert product> with <insert gimmick>".
I hope there's a little more to the patent than that.
Whether those changes would be positive (for industries outside theirs) is another thing.