When has he ever shown concern for another person? He only helps someone as long as they're useful to him. No matter how he wants to justify his actions, which he barely even tries to do, he just wants to be a dictator. I'll freely admit that he is my least favorite character in the manga by far, I even like Sakura, Kiba and Karin more than him, but there's plenty of Sasuke fans that spew crap about him all the time
Dislike Sasuke all you want but don't let it cloud your judgement.
Sasuke actually did care, he is not some cold hearted beast
-He cared about his parents, his brother. If he hadn't truly cared about them why would you think he became so emotionally f×cked up when he lost them? He also full on stated that Naruto is his best friend. And what do you do when you have a best friend? You care for them. He might not have helped Naruto, but he cared. Otherwise I agree that Sasuke hardly gives a crap about others, but to a certain extent.
Even though he hardly cares about the individuals around him, it does not mean he does not care about the overall condition of the world.
-There is no proof that he plainly wants to rule the world with no care about people. But there is proof that yes, he wants to be a hokage in the shadows. There is proof that yes, he will follow Itachi ' s footsteps and have everyone hate him.
You can presume that he's a dictator who wants only power, but it's not right to think or state it like a fact.
- As of now, your statement of him just wanting to be a dictator is off. If that was the case, it's too random a goal amd contradicts all the things he had learned and reflected from Itachi ' s words, from the kage ' s words, from the Uchiha tablet, from Naruto, from his past sufferings, and from the shinobi world.
I'll elaborate more if needed. Peace.