I find your post maddeningly cynical. For me, and I imagine for many other students, having my work written by experts from two of the world's most prestigious universities is a genuine reason for using the company.
A "normal" client does not know whom an essay writing company hires -- you seem to know EVERYTHING about "oxbridge essay" -- that's why I think you work for them and do sales pitch here. A "normal" client will order a paper - if it's good will remember it's good; if it's not - will remember it's not. He won't know so much details who works for them or not, what kind of press releases they wrote and when - why would he care? He cares about the final product and if the paper is delivered on time.