First, do no evil. Then try to do good.
If you’re doing good already, WE ADORE YOU! You are the person who other people think of as brave, and noble, and wise. Keep it up, and hold our hands as we come across.
If you’re unsure, it’s probably evil. Just in case, quit and find one which is full-on good. There’s a lot to do and not very much time left.
If you’re pretty sure it’s evil, then WTF bro? You’re KNOWINGLY doing evil? How do you think we should treat you? SORT YOUR FUCKING LIFE OUT, ASAFP YOU IDIOT!