Always at least two ways to look at any story. Some will say that he is doing it to show everybody what a fantastic person he is and how he should be applauded for his contribution, on the other hand and I much prefer this reason, he is doing it to make a difference, by publicising what he is doing may inspire other people to volunteer or think of their own way they can help the current situation. All sports personalities/celebs are caught in a dammed if you do/dammed if you don't conundrum, I think it's best to applaud anybodies efforts to help in anyway whether they be famous or not, this really is not the time to nitpick peoples motivations. Lets try to be supportive rather than negative, rather than question others do something yourself, you might feel much better for it and you could make a difference.