Professionals will see this differently
I've been a fan of Neelie Kroes and what she's managed to achieve so far, but despite that, I really can't get too exercised about this issue.
As an amateur (the word derives from Latin meaning "done for the love of it"), if I was to make something that went viral on YouTube, I really don't think I would mind too much about not getting paid for it.
It's unlikely that my objective in making it was to get rich - more likely I was just showing off, or having a laugh. The retrospective realisation that I might have earned money from it might make me wish I hadn't given it away, but what the hell, f**k it. If getting rich had been my objective, I would not have uploaded it to YouTube. I'd have gone about the whole thing in a much more calculated manner.
Amateurs who enjoy some success with "UGC" and realise they have a talent they could exploit, might subsequently decide to turn professional, and good luck to them if they can sustain it.
Professionals like Andrew who already make their living from their creativity will obviously see this all from a different perspective, but not every creative person needs or wants to be paid for what they do.