Positive and Negative effects of media
Some cases of negative media is Biases. Some media is very biased towards many things for example some american politics can be very biased in speeches they make can make some harsh and rather ignorant points that they claim will not change in some cases they have but in others they still claim to be.
Positive
Adverts Could/Can promote your sales by advertising a product then the audience of any format can go out and buy this "product" there for give the companies gross profit in turn for advertising this product.
Some Portions of media can promote Propaganda which isn't a good thing it could cause a change reaction within certain governments and start many wars for example mostly a government would advertise these some countries include United States, Russia and North Korea.
Negative
The promotion of Moral in advertisement causes people to do things for example election posters, election ads and voting stations are among the many things in Moral Advertisement.