I heard something very interesting from Paul McGinley on the Golf Channel post show on Saturday night. If you don't know, McGinley played on the European PGA Tour (now the DP World Tour), and played for and was a winning Ryder Cup captain for Europe. This was in and around the whole conversation about player compensation for the Ryder Cup and the Cantlay "protest". Each player is given $200K to donate to a charity of their choice (this is both the US and Europe), and all of their travel, lodging, meals, etc. are paid by the host side. The US team all get money in the PGA pension fund (via contribution from the PGA of America) as a result of being on the team. The DP World Tour has no pension fund, so the European players do not get anything.
Back in 1999, this issue first came to light, with Mark O'Meara, Tiger Woods, Phil Mickelson and David Duval leading the charge in complaining about this. The compromise was the charitable money being made available to players. You notice that you never hear anything about money from the European side, but there always seems to be something from the US side.
It shows where the motivation truly lies, and perhaps why the European side consistently has had the mental edge since 1987 in this event.