I feel like we should hold hands a sing Kumbaya when I read that post.
No, seriously, the benefit you are talking about is right in line with the financial goal. Those families didn't watch baseball before the WBC probably, so now they have their kids playing. Wash, rinse, repeat every 4 years, then move 10, 20, 30 years into the future. There are now Dutch players in MLB, meaning there are more Dutch fans tuning in, which means more $. This is the goal. Don't be fooled by being in love with the results if they are the means to the ends that MLB is seeking. This isn't to say the goal is a bad one, but it is what it is, let's not call it something different.
Jacko brought up China to which a700 brought up Sadaharu Oh. His father was Chinese, but his mother was Japanese, and he was born and raised in Japan. I don't know how much they would identify with him, particulary when Oh played in the decades following WWII and how closed China was to the outside world relative to how it is there now. Plus, the Chinese don't have a lot of fondness for Japan. A better and more contemporary example would be Yao Ming.