Very hard topic. The false prophets and hypocrites think they are doing good. They think they are on the right path, doing what they are, saying what they are for the good of all. Many at least. No doubt, many totalitarians were true believers. "you can't make an omelet without breaking a few eggs" (Derzhinski)
I have met people who have done grievous wrong, rapists, murderers, who have much good in them. One can see the kernel of good in evil actions. Seems Chinese, yin-yang.. good becomes evil, evil can become good. Lao Tze said, "the way that is the way is not the unchanging way".
How many times have I done wrong in the guise of trying to do right? How much of my wrongdoings have had the kernel of good in it?
Good, evil, are concepts, very human concepts. Concepts have no inherent reality. The view of a very different being would be vastly different from ours.
I try to be compassionate, honest, empathetic, respectful.. maybe that equates to good. Sometimes it doesn't work out that way. No doubt for others as well.
Blessings, Tara