The Fountainhead was written in 1943. Depeche Mode saw it's first success in 1981. If even one of the best economic minds in 2045 cite Depeche Mode as their influence then you have a point.
2007 - 1943 = 64
1981 + 64 = 2045
2007 - 1943 = 64
1981 + 64 = 2045
But if we're gonna go there (and this is all in jest), I see it like this: in 1981 Depeche Mode were a bunch of drama-whoring junkies with Casio keyboards, yet they managed to express the same basic ideas in far fewer words, plus a catchy euro-pop beat.
I appreciate some aspects of Ayn Rand's thought, but find her books a chore to read.
Alan Greenspan considers Ayn Rand a major influence? It's an interesting factoid, but falls far short of implying causality. I could make another Depeche Mode reference here, but it would be extremely tasteless.
When Greenspan and his ilk characterize people as 'parasites', I parse that as 'anyone who gets between me and the forests of money to which I am entitled'. I might see where he's coming from, but his rhetoric is needlessly violent.