I agree, it shows that our ethics can be bought. We claim to care about animals so much that we refuse to eat them, unless there's a chance to win money and fame. Then we'll happily contribute to their deaths and cook them, even if we don't personally eat them.
On one episode of The Amazing Race, someone who claimed to have been a vegan for X number of years, had no problem eating the flesh off a sheep's head. She didn't have to do it, but it was easier than the other option. I guess when there's a million dollars at stake, ethics fly out the window.
Anticipated dissection of the true meaning of "vegan" aside, people make restrictive dietary choices for reasons that may differ from yours. "Ethics" play for many, but not necessarily others.