Its not about "being nice", or "doing the right thing", but this guy and his family will spend tens of thousands of dollars in their lifetime on MLB, and the Yankees. Its all the hard work they put into their lives that they choose to spend on baseball which enables guys like Jeter to earn what they earn. Sure he's a throwback, but he's not making throwback money. I wish I could earn millions by playing a game for a living, playing it for 20 years, retiring, and live large. Sure you get up early for BP and get beaned, and sure it takes hard work but they also have more time off than teachers (October through March 1). Cry me a river. I'm not saying he should have fleeced the Yanks or Jeter, but the fact that they never even thought giving back financially to the fans who allow these ungrateful (mostly) and overpaid athletes to be what they are is disgusting.
The way you talk about being a fan makes it sound like it's some sort of tax, or involuntary. Fans make a decision to pay for tickets, buy memorabilia, and so on. We choose to spend money on sports, and, in return, we get to see a game (or own a jersey). It's not charity.
I do agree that athletes tend to be entitled d-bags far too often, but that doesn't make the fans victims who are somehow exploited by MLB.