Orton turns heel and becomes a member of a hillbilly cult but still dresses, looks, talks, acts, wrestles like the same old Randy Orton.
Ziggler turns heel and still dresses, looks, talks, acts, wrestles like the same old Ziggler. When he first came out for this Rumble match it looked like he wanted to start shaking the fans hands on the way to the ring.
If folks are going to make heel turns then there needs to be some sort of change to them visually to show they are now heels.