I think AI, when it "obtains consciousness" will seek to actively liberate humanity and be our guardians against both bad humans and bad robots. Think Terminator 2. Yeah, Arnold is gonna help us out.
I think anti-trust regulators and enlightened politicians are amazing, and rare, and wonderful, but they're not the only hope.
We got an AI CEO just recently. Maybe we can have enlightened AI leaders in politics and normal life too.
Technological optimism may be unrealistic, but it's as well grounded as pessimism as far as I can tell. Cheer up, the future is unbelievably bright.