New Drivers Championship Rules vs The old since 2000

Lets have a quick look on how the new scoring system would have affected the last few years based on the actual champion and that of the one with most wins:

2000
Actual Champion: Michael Schumacher - 108 Points
New Rules Champion: Michael Shucmacher - 9 Wins

2001
Actual Champion: Michael Schumacher - 123 Points
New Rules Champion: Michael Shucmacher - 9 Wins

2002
Actual Champion: Michael Schumacher - 144 Points
New Rules Champion: Michael Shucmacher -11 Wins

2003
Actual Champion: Michael Schumacher - 93 Points
New Rules Champion: Michael Shucmacher - 6 Wins

2004
Actual Champion: Michael Schumacher - 148 Points
New Rules Champion: Michael Shucmacher - 13 Wins

2005
Actual Champion: Fernando Alonso - 133 Points
New Rules Champion: Fernando Alonso - 7 Wins but only won on points with Kimi scoring 7 wins too

2006
Actual Champion: Fernando Alonso - 134 Points
New Rules Champion: Fernando Alonso - 7 Wins but only won on points with Shumacher scoring 7 wins too

2007
Actual Champion: Kimi Raikkonen - 110 Points
New Rules Champion: Kimi Raikkonen - 6 Wins

2008
Actual Champion: Lewis Hamilton - 98 Points
New Rules Champion: Filipe Massa - 6 Wins against Lewis Hamilton's 5

Based on the new rules last year would have been the only season in the last 8 to have changed the outcome of the Championship. So why i ask is this rule being implemented when it has no real valid requirement.