The point is Big Al the ministerial rules laid down by the Advisory Committee on Business Appointments state that ex ministers should wait at least 3 months before taking up such a position as Johnson did. (He had been earning £23,000 a month or £276,000 per annum from the Telegraph)

Johnson, as all with all other ministers, would/should have known this yet he took the role 3 days after resigning.

That is why the story has relevance. You, I, Joe Soap or Fred Bloggs have to abide by the rules laid down by the state or suffer the consequences, is Johnson any different.