As someone entering the workforce soon, it's very disappointing to see teach leaders who enjoyed the spotlight on their elevator ride up completely disappearing and pretending they have nothing to do with what they brought onto the world.
Even if you pretend you didn't know (and at the top, it's your responsibility to know), you can't pretend not to know going forward. Quit. Do something.
Had a lunch conversation with other CS PhDs today (mostly in machine learning) - Facebook is so out, everyone actively spoke out against working there. Was uplifting to hear.