Well, Michael Medved yesterday (I believe it was) had this pegged...He pointed out that both RR & Arnold S. were leading men...whereas Thompson was just a good character actor who wasn't going to draw a fan club like the other two.
I listened to his show yesterday as he endorsed McQueeg......a bird of Medved's own feather. They're both on the same wavelength regarding amnesty.
A pox on both their houses.
Leni