Those programs listed above are Executive MBA programs. So you need about 10 years of experience, a bachelor's degree, and $100,000 to get in anyway.
Their exception is for people like Bill Gates and Michael Dell: never completed college but none-the-less have demonstrated exceptional knowledge of business by building a Fortune 500 company from their garages. A part-time web developer has exceptionally little chance.
George W. Bush, while in office, pushed for one of his staffers to be admitted to HBS - as an alum and as the POTUS.
If I remember correctly, he was Jenna Bush's ex-boyfriend then became Bush's body man.