[geofft]

Take a look at the free software community (which is incidentally very well-correlated with what the "hacker" community used to be 20-30 years ago, and has much more of a claim to being the intellectual heirs of that group than the hackathon crowd does or even the HN crowd does). There's a lot of focus on ethics and civil liberties, and maybe a bit too little focus on effective PR and on shipping, but it's very refreshing.

As a concrete suggestion, LibrePlanet https://libreplanet.org/2015/ is next weekend at MIT, and free for students. Or see if there's a Debian group in your local area.