Movies and television has gradually become the main means of relaxation. In that case, they have responsibility to indicate people not to commit anything. Thus, I totally agree on the statement that movies and televisions should always show audience that good people are rewarded and bad people are punished.
To begin with, showing the (good) thing to audience is necessary, especially showing to the children. Their standards of judgment have not formed completely. If they watch someone who rubs the bank in the film, they may have such a thought that rubbing is available for me(them) and they can do the same thing when they are at the (at the 删)lack of money. Therefore, the wrong indication can lead to high crime rate in a sense.
In addition, it can inspire people to work harder to obtain the goals. A lot of movies or televisions show successful experiences about a ordinary man or woman. And they are likely to make people imitate what the hero or heroine do in the film or on television. To take my aunt for example,(Take my uncle as an example) her favorite TV series is about a love story happening to international students in Harvard University. And she was attracted by the fascinating atmosphere of the college and hence, she began to study earnestly and dreamed of going to the college one day. Eventually, her dream came true. I deem that the main factor that she gain the offer is the influence from that TV series.