Japan, which has the highest per capita spending on porn, has some of the lowest rape rates in the entire world.
On the other hand, South Africa, where the access to internet and porn is minimal, the rape rate is among the highest.
In Asian culture sex is highly frowned upon.
In South Africa men believe that raping virgins cures them of AIDs.
The two countries are not comparable in any way.
In Asian culture sex isn't frowned upon. This attitude came in relatively recently, after American influence spread to Japan and South Korea.
And in South Africa, men rape to prove their
masculinity, not to cure AIDS.