You don't know the consequences of this CEO's murder. Only a short time has passed. It may inspire a string of murders targeting unethical leaders scaring people from taking those positions and making unethical decisions or, perhaps, an entire revolution. Maybe it inspires nothing. It has definitely lead to some additional conversations, and I think that is a good start.
Murder is wrong. Punishment without trial is wrong. Denying critical benefits and putting people into crippling debt in search of profits is wrong. Someone did one wrong thing to stop other wrong things. We'll see where it leads.
Hail to the king, baby!