It's no wonder you feel the way you do on this, because that is an utterly false but common misconception. To say Osama is revered by few is a huge understatement; there are easily thousands if not hundreds of thousands that think of him in a positive light (if not outright worship/praise). Many of which are uneducated, poor, or raised to think that way but it still applies nonetheless. And you don't need to be educated or rich to be armed with a gun, or run into a place with a bomb on your chest.
Osama has actually given away/donated a not insignificant amount of his wealth to communities through various means in those regions, obviously with the motivation of garnering more support for his causes. But many people and children that live and grow up there see a man that stands for much of what they're taught to be/want to be like, that 'selflessly' gave money to help them. And to them, we just murdered that man.
Have you checked out any of the interviews posted with people native to Afgah/nearby countries? Not that news media portrays the frequency accurately, but it paints a very good picture of what I mean here.
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