Socrates got what he deserved.
Or at least Plato's version of him did. I suspect Plato may have put a lot of words in his mouth that were not his. He was a slick talker, but he idolized the Spartan bully-boys, collaborated with the oligarchs and the Tyrant, and did everything he could to undermine democracy in Athens. And we know his students were all troublemakers.
He also negated a 500 years of Ionian science by abandoning the Greek idea of a rational universe open to human investigation and reason, and substituted for it a mystical vagueness of dualities, shadows and relativism.
You're right about one thing, as Mary Ann pointed out, what's good for you is not necessarily good for others, but what's bad for you is probably bad for everybody.