It's about the typical reaction to each image. A normal person will repulse from depictions of gore and violence because most people are not naturally inclined to that kind of imagery, so it's less important to regulate because its effect on the vast majority of the viewership is not dangerous, though contributing to the desensitization toward violence and crime is obviously counterproductive and individuals should take care to control their personal intake.
Pornographic or erotic imagery is different. It taps into a natural impulse that almost every person has and most likely doesn't promote particularly virtuous deployments of that inclination. Sex, and by extension sexual imagery, has a very powerful pull on most people and the use of sexual impulses must be tightly controlled if reasonable social cohesion is to be maintained.
Will and Ariel Durant, prominent historians from the mid-1900s: "No man, however brilliant or well-informed, can dismiss the wisdom of the laboratory of history. A youth boiling with hormones will wonder why he should not give full freedom to his sexual desires; if he is unchecked by custom, morals, or laws, he may ruin his life before he understand that sex is a river of fire that must be banked and cooled by a hundred restraints if it is not to consume in chaos both the individual and the group."
I find that description extremely apt. Sexual imagery provokes a more fervent reaction because it has a much more dangerous effect on a much wider segment of the populace than violent imagery.
Pornographic or erotic imagery is different. It taps into a natural impulse that almost every person has and most likely doesn't promote particularly virtuous deployments of that inclination. Sex, and by extension sexual imagery, has a very powerful pull on most people and the use of sexual impulses must be tightly controlled if reasonable social cohesion is to be maintained.
Will and Ariel Durant, prominent historians from the mid-1900s: "No man, however brilliant or well-informed, can dismiss the wisdom of the laboratory of history. A youth boiling with hormones will wonder why he should not give full freedom to his sexual desires; if he is unchecked by custom, morals, or laws, he may ruin his life before he understand that sex is a river of fire that must be banked and cooled by a hundred restraints if it is not to consume in chaos both the individual and the group."
I find that description extremely apt. Sexual imagery provokes a more fervent reaction because it has a much more dangerous effect on a much wider segment of the populace than violent imagery.