Rewarding one with £3m a year while the other has to go look for a real job that might pay £30k a year is what strikes me as unfair.
Yeah well it strikes me as unfair too. However, it's not. It just so happens that a fuck ton of morons will pay 10% of their salary regularly to watch a ball being kicked around while wearing an advert, while noone is willing to fund an accountant's salary by paying Sky to broadcast their work.

Football is better than watching someone doing the books, so it's fair.