I didn't watch the clip, was it his own money or some TV network/sponsor's money?
And for the record I've given more money than that to charity through annual donations my company makes. That's my money - money that I would be entitled to draw as a dividend if I wanted to.
Given that there's only circumstantial evidence that he could have been drunk I think I'll refrain from judging the guy. At a gig last night I had a solitary can of Red Stripe and a couple of hours later I drove home. There were several photographers and I'd be surprised if someone hasn't snapped me standing on stage taking a drink from a beer can between songs, but I was well under the legal limit.