Pence could well be a great deal more target-bound and agenda-bound, unlike Trump. It’s not entirely clear if Trump has any kind of coherent agenda, other than revenge against the establishment, or rather against whatever elements of the establishment he doesn’t identify himself with. Hence his petulant crybully behavior and Twitter trolling as “Real Donald Trump.”
Pence, on the other hand, could do quite a lot of of stuff. I can imagine him being a cold-blooded ‘long-haul’ calculator and plotter, like some of the Russian autocrats of modernity.
Trump may be Gollum, but Pence could easily make a Lord Saruman.