Many people probably averaged more, playing a short career can easily skew that. PPG for Magic would've had to have gone on for another decade to see if he had sustained dominance such as Kareem at 38 years old.
I think it's more a case of you ONLY look at post season and place FAR too much importance on rings and FMVPs. Your other image of Hakeem too focused on playoffs, a lot like this one for Magic. I think you fail to see that careers are just that, careers. Not simply post season performances. I also find your analysis quite negative. WHY did Kareem only achieve FMVP twice in comparison to Magic's three? What went wrong? Was he carried? etc etc.
And therein lies the irony of it all. You admit you've never looked into it, yet are happy to throw around phrases such as 'why he was mediocre when it came to winning'. It's VERY common knowledge his Bucks side were definitely not on his level, hence KAJ winning just once with them but 5 with the Lakers. A good analogy? Think early Lebron with the Cavs before his Miami Heat move. I mean, Lebron only won when he had Wade, or Kyrie later on right? Same thought process you've applied there?
For example, let us take 1980. FMVP was Magic. Thus by your logic, Kareem was mediocre when it came to winning right? Carried by Magic? Nope, he averaged 11.9 more points than Magic, 2.4 more rebounds, and 4.3 more blocks. Magic on the other hand averaged 5.5 more assists and 2.1 more steals. Kareem's number that series were INSANE. Why did he not win the FMVP? Simply cause he was injured for Game 6. His absence meant Magic had to do everything (Which he did) and thus he was given the FMVP. Had Kareem not been injured, Magic wouldn't have had to shoulder it all. It's common consensus that KAJ would've won the FMVP over him for his incredible series. If you tell me this was mediocre as he didn't win FMVP:
http://www.basketball-reference.com/playoffs/1980-nba-finals-76ers-vs-lakers.html then I don't really know how to explain that there is more to it than FMVPs and rings.
You can analyse the others, and no doubt there will be ones where he wasn't the star, yet Magic was. But to assume that because 3 > 2 KAJ was awful in the others is lazy.
And yup, it goes back to the same thing again. KAJ needed star support despite dominating. Lebron needed star support despite dominating. Jordan needed star support. It is, after all, a team game.