As someone said already, it is not how you call your "company" or the position you have in there. The results should be the important thing.
The whole thing about Startups, definition, is that every single John Doe, want to say he is a hacker "just because he knows how to code", and want to say he has a startup "just because he has an idea, and a software/site based on it".
Well, definitions might be OK, but I agree with you. At the end of the day what really matters is how much money comes into your wallet, it does not matter if you are called "the janitor of the website".