unpaid villain at 2008-06-03 18:12:00:
I had a similar thought re the two plots: there's the Western, where the good guy is gonna fix up the town and s/he hasn't got a lot to learn, or the rest, where the protag is there to get fixed.
I was thinking about modern westerns - Die Hard pointedly draws the parallel with Yippy-Ki-Yay - but then McClane has a few things to learn about his relationship with his wife. A bit of both, then, perhaps also evident in the psychologically tormented / vulnerable superhero (latest Spidermen flicks), which seem to have become their own sub-genre.
I may be drawing a long bow here, but there's something shared by superheroes like Ulysses and the old style Western cowboys - the Wyatt Earps etc.
And, something that seems to be true more of Hollywood film making / American modern mythology than say European / Australian / New Zealand modern mythology, is the love of Olympian figures - superhero gods like Superman. The Japanese have got loads of superhero kids' stuff, but can you think of other cultures that have such a successful late teen / adult audience for the modern Olympic god?