Galaxy is full of Batarians who need their asses kicked. Meet enough of them during the course of the 3 games, but all the better if you get a head start during the background. Not to mention, your being vacation interrupted by the forces of evil, only to rise to the occasion at kick some ass is an 80s action premise worthy of Schwarzenegger. Which would also go along way to explain the one liners seen in the ME2 renegade triggers.