some human individuals are greedy and psychopaths.  in the pre-modern era the society around them usually had enough when they exceeded a nuisance threshold and beat them to death. if you read stories of how life among uncontacted tribes in the amazon works you'll get the idea. someone is greedy and violent, he gets more women for a start. then he dies in an ambush because it gets to his head and he just becomes more of a nuisance. sometimes his wife and children are also killed. today there's ways to predate on society with no consequence. those who find a way to exploit it just keeps reinforcing their parasitism. us healthcare and insurance is an example of it. it's a fraud and a scam to have an insurance, and it's equally bad to not have one. without the ability to readily kill those responsible, this system will just become worse and worse. it's like having a rapist and coomer immune to prosecution in your neighborhood when you have children. maybe the guy is raping only that one hot chick today but he's rewarded for his transgressions, he's going to rape more, not less, the law doesn't fix it, your neighbor don't fix it, and you'll not fix it so he'll rape your children, he'll rape their children, he'll rape you and he'll rape the police when they show up. he'll be the rape-king of rapists. and you're asking how would the situation be helped if someone shot him? better figure it out before you're raped.
Norway