It's a disease because it only cares about one. And one only.
Selfishness is disguised as fighting for "justice." But when "justice" is self-serving, it's not real justice.
Selfishness demands exceptions and gets angry when the "special" requests are unsatisfied.
Selfishness is poisonous and hungry for revenge: if "I couldn't get what I want, I'll make sure to hurt you too."
Selfishness is hiding with fear. Instead of being honest about it, selfishness pretends to be the opposite. After all, it isn't a badge of honor, no matter what.
If everyone chooses to be selfish, what a hopeless world to live in.
