This is the same David Mellor who was part of a government that persuaded us that free markets are the best way of running economies. Free labour markets, where employees are given the right to find the deal that is best for them unencumbered by bureaucratic interference, are an essential feature of such economies. In case you haven't noticed, Mr M, you won the argument . If Arsenal are prepared to pay a player twice as much as Chelsea are then that is a matter for Arsenal, a private organisation, and the player, a private individual. If other people want to make it their business, their only possible motivations are envy or spite.
Footballers have very high market value but for a very short period of time.
Let them get on with it. Curse the players' luck in having such outrageous talent, but admire their dedication in making the most of it. Of course they want to double their salaries. Finally, remember that this person was a prominent member of a government that refused to condemn 'fat cat' salaries. The reasoning was that organisations should be allowed to do anything in their power to attract talent and make themselves competitive.