OP here are some good examples of how cultural influences have shaped the way in which those cultures have viewed and reacted to certain actions.

Suicide bombers. To much of the world the act of blowing yourself up in an attempt to kill/harm others can be viewed as a barbaric and 'evil' act. However within the confines of certain cultural/religious influences, that same act may be viewed by certain individuals as noble & heroic.

Human sacrifice to the 'Gods'. When we read about the Mayan ball game and how human sacrifices were made with the 'captain' of the losing team being beheaded, many may view that act as barbaric and inhumane, and as a punishment. But to the Mayan the act of surrendering one's life to the 'Gods' may very well have been viewed in a positive and prestigious context.

Was it the ancient Greeks where it was accepted for men to have sex with boys in the bath houses? I am personally repulsed by the thought of this but I'd imagine back then it was culturally accepted for this type of behavior to transpire, however much of the people alive in the world today would understandably be disgusted by such a practice. But back then people would not have reacted in a similar matter.

What some will fail to understand is that this conversation is not about what is universally 'right' or 'wrong' but how societal and cultural factors influence how and why we are inclined to have certain reactions to specific acts or events. I have a strong interest in human psychology so this subject matter interest me greatly.