That's a strange take on Socrates, it makes him sound like he died (intended to die?) for our sins like some kind of Jesus figure. I doubt he'd agree with it.
Anyway, I suspect you mean 'in vain'. Veins are those little tubes in your body that the blood flows through, in generally in the direction of the heart. Since Socrates died by poison one could argue that he literally died "in vein" but this is probably not the interpretation you were going for.
I agree with you on the teams thing, and in my opinion it has a strong relation to two-party systems.