Can a site monetize heavily on affiliate…

I have a site that make me over 15k a month in revenue sololy on an affiliate program. I am wondering if the site could become a so-called internet startup like one of those in silicon valley?
i am the solo owner and i only outsource jobs on Elance so i have no employee.
Can a site like this make it in Silicon Valley?

how come there's sites that make virtually no money, huge burn rate on VC money and gotten rich like crazy in the end?

Can a site monetize heavily on affiliates can make it as an internet startup company?