Answer: Most of the stela found in Iran bear depictions of goats, humans, and simple geometric shapes.
Explanation:
The Iranian Archaeological Institute found over seventy stelae, most of which are intact, and one part is damaged. The largest stela is about 80 centimeters long, and the smallest 30 centimeters—the stela date from the fifth century BC. The found stelae are exhibited in several locations and represent a real tourist attraction.
I'm not sure if this is the answer but I think it was because they never experienced the violence that they were giving people. Sorry if this doesn't make sense but I tried. :)