Who do you think dictates what is good and what is evil?
Good question anon. Personally I do not subscribe to any particular deity or religion so I will spare you an umbrella answer. No disrespect to those who are religious of course, but I never did like umbrella answers. I think Benedict Cumberbatch said it best in one of the interviews he did last year when he said, “One man’s terrorist is another man’s freedom fighter” Wise man that Mr. Cumberbatch. Good and evil are all a matter of perspective and in a social group (nationally, politically, religiously, etc.), the majority decides which they wish to deem good and not good. Some groups honestly believe that their way is the proper way and everyone else is wrong, which is how a lot of wars get started. Humans, as far as we know, are the only species on Earth who have concepts of good and evil. I suppose these concepts help social groups to survive. Concepts of what is good or evil can change many times to fit a society’s needs or desires. The history books are rife with examples of such.
Hope this answered your question, I know it’s a bit long winded. These are of course my opinions, there are many out there.