According to The Hollywood Reporter on Aug. 29, Zack Snyder's "Man of Steel" film has its reasons for the massively destructive nature of the battle scenes between Superman and General Zod's forces. According to Snyder, such demonstrations of catastrophes such as the one shown in his film has roots to ancient mythology.
"I wanted the movie to have a mythological feeling. In ancient mythology, mass deaths are used to symbolize disasters. In other countries like Greece and Japan, myths were recounted through the generations, partly to answer unanswerable questions about death and violence. In America, we don't have that legacy of ancient mythology. Superman … is probably the closest we get. It's a way of recounting the myth".
Though, fans may wonder if this would foreshadow the possibility of future sequels may contain a continuance of catastrophic battles due to keeping in line with ancient mythology, however, Snyder does tout that Superman's true character is more personal in nature.
The reason for this is because Clark Kent has grown up being different than others and always strives to be like everyone else in society. Though, according to Jor-El, Superman's father, he entertains the idea that what if society had meant for him something different than society had intended.
The implication that Superman is meant for greater things confirms he'll never truly be like everyone else and as his Kryptonian father mentions that "He'll be like a God to them". Thus, this would make sense of Snyder's ability to draw an analogy to Superman's god-like status.