Its kinda funny that there were only two options.
1. He didn't go and it would hurt his career and everyone would be saying he is an ass.
or
2. He went and it helped his image a lot and everyone likes him now.
No middle ground, of the two he would have just been stupid not to go and for WB, his agent, etc. to push him in no matter his opinion.
I still think its great that he went but just going doesn't really change my opinion of him much. Now if he was paying for thier medical bills and things like that (or maybe heading up a charity for them, or anything of the sort) I would be calling the guy a saint.
Also it isn't really up to the crew to go. Bale is the face of the batman series, and while it would be great if the other actors went, it is really all about him.
I don't want to sound negative but this is my opinion