I see a few names on that list that shouldn't even be in the queue in my opinion.
David Beckham, Jonny Wilkinson, Robbie Williams, Michael Vaughan, Terry Wogan, Princess Diana...
(among many others)
There are quite a few folks on there that have undoubtedly placed themselves among the very highest class of contributors to the advancement of humanity.
Other scientists, mathematicians, and technical innovators already honored: Kelvin, Darwin, James Watt, Florence Nightingale, George Stephenson, Alexander Graham Bell, and Alexander Fleming.
Saying that, recent Bank of England notes[2] seem to sway much more heavily towards engineers/scientists (Newton, Wren, Stevenson, Faraday, Darwin, Boulton/Watt) and social/economic reformers (Nightingale, Houblon, Fry, Smith) than artists (Elgar, Shakespeare, Dickens) or military leaders (Wellington)
[1] http://www.bankofengland.co.uk/banknotes/Documents/about/ban...
[2] http://en.wikipedia.org/wiki/Banknotes_of_the_pound_sterling...
However, in credit to the man, he did do a great job with the Olympics.
https://en.wikipedia.org/wiki/FIFA_World_Player_of_the_Year
Second twice for World Player of the Year.
The only player out of that list who compares is Scholes; Paul Scholes is the best midfield player of the last 20 years according to Xavi.
Neither Rooney or Gerrard are fit to lace Beckham's boots. Rooney has been a shortlived wonderboy, and Gerrard admittedly has been fantastic for Liverpool, but has had one good game for England in the 5-1 victory over Germany.
Beckham's vanity as a person shouldn't impact the reality that he was an extremely good footballer.
PS. I'm a Villa fan so no Man Utd favouritism.