The modern Tony Stark is literally based on Elon Musk. Interest in Computer Science programs jumped after the Social Network movie came out. I think there's more truth in roymurdocks' comment then you give it credit for.
Stark is just as based upon older tech moguls like Larry Ellison, Richard Branson, or even Steve Jobs. Interest in archery jumped after the Hunger Games comes out. SV culture is significant, yes, but is it disproportionately so compared to other things?
Movie-Stark's mannerism is openly based on Larry Ellison, who helped finance (and even had cameos in) the IronMan films. Other self-styled magnates were also an influence, of course, but Ellison is the big one, afaik.
More like "I am not aware that I troll therefore I am not."