The Hunger Games - Suzanne Collins

Suzanne Collins' trilogy begins with The Hunger Games. The main characters are teens struggling to survive in a society sharply divided between the ruling class that lives in the country's capitol, and the majority of the citizens of Panem, living in twelve districts where the necessities of life are produced. Life in the capitol is luxurious and decadent. Life in the districts is desperate and austere.
A major theme of the books is the use of fear and intimidation by the undemocratic government to control Panem's citizens and the main character's shift from submission, in order to survive, to defiance and independence.
The residents of the capitol lack empathy and are "entertained" by the violence of the games - perhaps because of seventy-five years of exposure?
Being successful at the games only brings the winners to another level of abuse - perhaps a comment on the price of celebrity status?