> you don't see this stuff around (say) Hawking or EinsteinYes, you do--it's just that the mythbuilding builds on different aspects of their personalities.
Mythbuilding around Einstein made him out to be the physics outsider who came in and revolutionized physics--or, in the somewhat less outlandish (but still outlandish) version, the kid who flunked all his physics classes in school and then revolutionized physics. Neither is anywhere near the truth. Einstein was an expert in the physics he ended up overthrowing. The reason he did badly in school was that school was not teaching the actual cutting edge physics that Einstein was interested in--and was finding out about from other sources, pursued on his own. And even then, he didn't flunk out of school; when he published his landmark 1905 papers, he was about to be awarded his doctorate in physics, and it wasn't too long after that that he left the patent office and became a professional academic.
Mythbuilding around Hawking made him out to be the genius who, despite his severe physical disability, could see through all the complexities and find the simple answers to fundamental questions that will lead us to a theory of everything and the end of physics. (This mythmaking, btw, was not infrequently purveyed by Hawking himself.) That story conveniently forgets the fact that none of those simple answers he gave have any experimental confirmation, and aren't likely to get any any time soon. He did propose some groundbreaking ideas, but none of them are about things we actually observe, or have any hope of observing in the foreseeable future. And the biggest breakthrough idea he's associated with, black hole entropy and black hole thermodynamics, arguably wasn't his, it was Bekenstein's; Hawking initially rejected Bekenstein's arguments for black hole entropy.