1. Greed: You desire something that someone else has so you steal it, or cheat to get it etc. and thus cause harm to those who lose what you gain.
2. Jealousy: You love/want somebody but they give their love to someone else, you hate that someone else - because you think it prevents you from getting love. Then you do bad things to those people who you are jealous of to make them look bad etc., or even do things to make them disappear from the scene etc.
3. Envy: You see that some people have what you don't and therefore you hate them and want to destroy their happiness.
The last one is the worst kind of evil. In 1. you get something by stealing. You benefit from that. In 2. you (try to) prevent someone from directing love away from you. But you still do it for love, to get love, and maybe you do. In 3. you are just pure evil because nobody benefits, not even you, from destroying the happiness of others.
Envy is the worst kind of Evil. You try to prevent others from having something you can not have.
Yes there are people like that even as leaders of nations I think. Sometimes they are called sociopaths, sometimes psychopaths. There's even serial killers. Naturally they don't advertise their character.
I think you make a good point that maybe "Evil" does not exist but "Evil People" do. We need to recognize them and condemns them, and avoid getting killed by them.
1. Greed: You desire something that someone else has so you steal it, or cheat to get it etc. and thus cause harm to those who lose what you gain.
2. Jealousy: You love/want somebody but they give their love to someone else, you hate that someone else - because you think it prevents you from getting love. Then you do bad things to those people who you are jealous of to make them look bad etc., or even do things to make them disappear from the scene etc.
3. Envy: You see that some people have what you don't and therefore you hate them and want to destroy their happiness.
The last one is the worst kind of evil. In 1. you get something by stealing. You benefit from that. In 2. you (try to) prevent someone from directing love away from you. But you still do it for love, to get love, and maybe you do. In 3. you are just pure evil because nobody benefits, not even you, from destroying the happiness of others.
Envy is the worst kind of Evil. You try to prevent others from having something you can not have.