Nah, that is called taking opportunity. He sees the charity as a chance to increase his bottom line.
I don't know that he is rich, if he has to pressure anonymous strangers at the warforum to cough up 10k for a cancer girl. Something smells awfully stinky. He probably used up the money he made on a decent house and doesn't have as much cash now. In more affluent places you can easily blow 2mill on a house that isn't even that big, if you also buy land with that. So anyway, I wouldn't believe the whole "he's a mega successful rich marketer" myth he's always selling. he might have made bank on one or two projects, and the rest I'm not so sure.
If I really wanted to support a cancer girl whose family specifically states they only want $10,000 donated (they put a cap on the amount for tax reasons) I wouldn't post to some forum about it unless I didn't have the money. If I had it, and it was a cause I believed in, it would be taken care of, and I wouldn't need to go around showing off how great I am "because I care, dude!" like Mike Fileshistaxes.
I donate on a smaller scale to a variety of causes, but don't advertise it. No need to overcompensate for your small dick size by bragging about how generous you are - unless you're Mike.