This reminds me of a detail from the plot of the original Deus Ex. Part way through the game, there is an optional dialogue with a benevolent AI. If you question it enough, it reveals that it is the rejected prototype for an anti-corruption/terrorism AI which was turned off for being too effective: eventually classifying its own masters as a criminal organisation.
man this thread makes me want to replay the game again.
It's in the original game and it was the MJ12 Daedalus AI, although I'm not quite sure where the player picks that piece of backstory up. It might be in the dialogue with the prototype in the Everett house.
Yeah it's Daedalus. I Googled it and I'm factually correct but I must have the conversations mixed up in my head... It might be one of the human characters who tells the player about it.
I think I got the conversation wrong... But it's definitely revealed at some point. My memory has gotten fuzzy! Definitely time to give it another play through.