It wouldn't be for Tiger Woods or Davis Love III or David Duval, not because they aren't loyal to their country but because other events are more important. It would have been interesting to see Augusta National in the summer, when it's usually closed, and to see many of the best women players finally get their chance in competition there. But Augusta National and the Olympics are better off that it didn't happen. It would have seemed contrived. Plus the azaleas don't bloom in September.
Golf already has enough championships that matter.
Every year, the four major championships command Olympic-like preparation from the game's best players. Every other year, the Ryder Cup creates more electricity than golf in the Olympics could ever generate. Those aren't going to change. They are the ultimate measures of golf at the highest level, just as the Olympics are that measure for swimmers. At best, golf in the Olympics would be on the level of the President's Cup, an unfortunate attempt to capitalize on the Ryder Cup's unique passion and history.