I was the subject of a great reward eventually given by a sarcastic computer program and apart of a famous phrase from an aristocrat. What am I?

When hoarded by one, I build prisons and lies. When shared among many, I help freedoms arise. I can forge heavy chains or can break them apart; The more you desire me, the less worthy your heart.

I may eat you while you live, an affliction both unkind and slow. When I come, although most are lucky enough to avoid me, I take away what makes you, you: family, friends, and sense of self. People may grieve you before you pass, when I am with you.

First of thirteen siblings, I joined them to kick out my father. And when he left we got together and came up with our own rules. I share our heart with my sister upstairs and my name with my lawful, rebellious daughter.

A kiss on the cheek, a knife in the back. A brother's last whisper before his attack. You won't see me coming, and might say it's unfair, but those who will wield me seldom do care.