Don't Talk About It. Just Do It.
To answer these questions, students at America's Stanford University started Students For Informed Career Decisions (SICD). What is it with student orgs and acronyms?
Anyway, they encourage graduates to take this pledge.
"I pledge to explore and take into account the social and environmental consequences of any job I consider and will try to improve these aspects of any organizations for which I work."
I like this little piece of pragmatic activism. SICD don't argue for unrealistic bans on taking jobs at dodgy companies. Instead, they encourage us to think a little more about the place we work at.
Their website also lists a bunch of questions you can ask (if you have the balls) at job interviews like...
"How is your company socially responsible?"
"How do your products or services make the world a better place?"
"How much money does your company spend on political contributions/lobbying expenditures?"
"If you are in a spaceship that is travelling at the speed of light, and you turn on the headlights, does anything happen?"
Last question by Steven Wright.
Read more and take the pledge.