No, it doesn't imply that.
Not everyone can be in the 99th percentile of the IQ bell curve.
But you DO have to take the d@mn IQ test to get on the bell curve at all.
Ditto work. Not everyone can be Bill Gates, but everyone can earn enough to feed themselves (see tagline). Even Paul had to make & sell a tent once in a while.
The trouble is that with the money-based kind of “rich” that Cain was actually implying (it was in the context of the Wall Street protests), there is no top. Bill Gates could look at Herman Cain and say ha, you’re not rich, sir.