What does the mutual reward theory state?

a. family values are more important than ethnic differences.
b. relationships are strengthened when the persons involved or reinforce one another.
c. when something becomes annoying, it has passed the point of no return.
d. rewarding poor work doesn't serve the common good

the printing press made a huge difference in arts and crafts movement.

personally, i think the games do because it's actually them controlling it. this might cause them to think it's okay to do it for real. as for animated movies i think they are mostly fine because they're animated. also, animation has come a long way causing animated movies to become more real but 30 years ago this wouldn't be as big of a problem as today.