Nah. Disagree. I'm gay, and as much as I wish we didn't, we need people to stand up there and say, no, fuck you. This is a love story. They just love each other.
If you were able to generate near life-like images and simulacrams of human speech why would you tell anyone?
Money. The answer is money.
Quantum computing wouldn't be developed just to break encryption, the exponential increase in compute power would fuel a technological revolution. The encryption breaking would be the byproduct.