Agreed - the length of time it takes to win a race is not indicative of how good a driver you are. Like Button, Hakkinen was trapped in mediocre machinery until McLaren came good towards the end of '97, then aced the regulation changes into '98.
Barichello also, started in 1993 raced with Jordan and Stewart, and all of a sudden, 7 years later he got a decent seat with Ferrari, and suddenly won 9 races with them.
It's a sorry state of affairs for a sport, but unless you have the right car, you cannot win. Button proved everyone wrong today with a storming, flawless drive, but in reality, there's only really 3 people on the grid at the moment who can win a race - unless they go out and someone else gets lucky. Rain however is a great equaliser, and lets driver talent shine through inferior machinery - step forward JB, who is renowned throughout the paddock for having incredibly precise throttle control, and for being very smooth and easy on his car. Traits which the late, great Jim Clark was famous for......
[can open, worms everywhere]