So here's my question - what is it about Tezuka that when he writes himself into his stories, it seems totally natural and far from "Mary Sue-ing" or vanity?
I never really seemed to think of it in a bad way at all.
Here's something to contrast with it...
Woody Allen.
I'm not a huge fan of his films, but he appears in a lot of them as someone who is basically himself (and who often ends up with a girl who is way prettier than he deserves

Yet with Tezuka, it's totally different. He wrote a number of semi-autobiographies, even, but we don't get the sense that he is just trying to write all about himself because he thinks he's great or something.
What are your thoughts on this subject?