Roger Waters sorry about defacing a memorial

Fair play to Roger Waters, he's been quick to apologise after his hapless advertisers slapped an advert over the top of Elliott Smith's memorial:

“I didn’t want to disrespect Elliott Smith’s fans, and I’ve instructed [the team] to remove the wheat paste immediately. It was a random pasting in the normal course of this, and I want to make it public that we had no intent to offend or cover up something precious.”

Well done, Roger. It was an accident, you've cleared up the error and...

Oh... what did you say to the LA Times?

“It’s not like this was some pristine monument and Roger Waters is the Big Bad Wolf who covered it up.”

So, you'd almost managed to make good but then had to go and issue a defensive sneer. That's probably worse than the original accident.

Also to the point, shouldn't a multi-millionaire like Waters be paying for his advertising, rather than slapping wheatpaste posters up all over town?