In the world of business. it is not always easy for women to do the same things as men. Consider the working dinner.
In order to do your job well, it's important to sometime see clients and business contacts away from the office. In a more relaxed atmosphere, you can get to know your business partner better. In the end, after all, people do business with people they like.
Women start out at a disadvantage because, unless you're Nancy Lopez or Martina Navratilova, it's tough to invite men out for a game of golf or tennis... Men usually prefer to play sports with other men.