Earlier quoted context omitted.
Ayn Rand was opposed to the labor theory of value, which is a central tenant of Marxism.
While I'm not a marxist, I think she goes too far in her opposition to this. All of the protagonists are capitalists (mostly with inherited money) and those who actually work to advance the cause of the "great men" - i.e. Eddie Willers - are given short shrift, and little chance to advance. Instead we have great men with inherited fortunes, doing very little actual work, preferring whining about "looters" and in one…
That's because he's never advancing much by himself beyond that which he is 'given'. Eddie is definitely an interesting character in the book. Like the 'man of not so great ambition' who still knows that he will, materially and spiritually, be better off by not looting those who made their fortunes exclusively through voluntary exchanges of their own successful products, efforts and work.
Yeah, in the book he lacks their talent but shares their code of value. He's like the character introduced just so that you can't complain 'there's only great men in this book, how unrealistic'.