Venture capitalists are often looking for billion dollar companies. If you found a company and grow it organically to where it's worth $25 million, then sure, you are no Bezos, but you are fairly successful (financially) by any standard. But venture capital doesn't care about $25 million companies, because their business model involves investing in so many companies that fail that a $25m success doesn't really move the needle for them. They want to see B's not M's in their companies' valuations.
Meanwhile, the media doesn't have much to work with when reporting on privately held, non-venture backed companies. There's no official valuation unless the company sells (sure, once you get to be the size of Cargill or Bloomberg, reporters will try to calculate some sort of valuation, but very few companies fall in this category), and the owners typically have no good reason to want publicity from the media, especially if they are selling B2B.