Do you think that nice Roman general is gently lifting up that distressed provincial woman? Is this our Roman good deed of the day? Is the moneyer celebrating his grandfather’s lending a helping hand to Sicily during the slave revolts? I think not. Let’s look at another specimen:
No eye contact. In fact the heads are facing in different directions. I’m thinking the standard interpretation is a little too romanticized, influenced perhaps by ideologies espoused by modern apologists for colonialism. This looks to me like a figure group composition based on the Achilles-Penthesilea model which became pretty popular in the Imperial period:
The moneyer would rather have a grandfather that conquered Sicily rather than one that just put down a mess of slaves. And, given the scale of the rebellion and how it included non-slaves (Diod. 34/5.2.48 amongst other passages), that representation need not be considered a complete fiction.
Update 1/11/16: More comparative iconography: