It's possible to do great things and still be a terrible person. I know some people might find it hard to believe but it's also possible for people to change as they age/get richer/get more powerful/get less powerful/get poorer etc. Elon 10 years ago isn't Elon today.

Yeah, ex. Pablo Escobar bombed a flight with hundreds of people on it, killed thousands of police officers and many more civilians etc.

BUT he also built churches and schools in the poor neighborhood he grew up in.

So he did some really terrible things and was overall a terrible person, BUT he also did some really good things.