I don't want to see a fun Section 31 film, I want to be horrified by what they do, because they've got no business doing anything that I'm ultimately happy with in the Star Trek universe.
What have they done that we should be happy with?
Georgiou is a different person. She is not the same even from when she went to the 32nd century. There's value in her work in Section 31 because she knows, first hand, the path that there actions could take and how she can make a difference.
I was rewatching Season 3 because the Terra Firma episodes are still my favorite and I saw a quote from Stargate that quite well sums up how Georgiou can be handled as a character:
Teal'c: Nothing I have done since turning against the Goa'uld will make up for the atrocities I once committed in their name. Somewhere deep inside you you knew it was wrong, a voice you did not recognize screamed for you to stop. You saw no way out, it was the way things were, they could not be changed. You're trying to convince yourself the people you're hurting deserved it. You became numb to their pain and suffering, you learned to shut out the voice speaking against it.
Tomin: There's always a choice.
Teal'c: Indeed there is.
Tomin: I chose to ignore it.
Teal'c: Yet you sit here now.
Tomin: I sit here, and I cannot imagine the day when I will forgive myself.
Teal'c: Because it will never come. One day others may try to convince you they have forgiven you, that is more about them than you. For them, imparting forgiveness is a blessing.
Tomin: How do you go on?
Teal'c: It is simple. You will never forgive yourself. Accept it. You hurt others, many others, that cannot be undone. You will never find personal retribution, but your life does not have to end. That which is right, just and true can still prevail. If you do not fight for what you believe in all may be lost for everyone else.
But do not fight for yourself, fight for others, others that may be saved through your effort. That is the least you can do. (Emphasis added. From Ark of Truth).