Maybe that celebrity has already had a multi-million dollar asset or even have a better deal with other organization or the deal might provoked his pride and principle so he/she don't bother accepting that deal but I don't really know I could be wrong on this. If that is what makes that celebrity comfortable then he/she has the right to do that as long as he/she do it legally and for me it is not a problem as it is based on personal preferences.
I can say, maybe, the celebrity doesn't have the dire need of that money. So he just ignored the deal and just want to go on with his lifestyle. The amount may matter to some but for people like him, it seemed he didn't care about it. And that's his own business.
For us, it is a reckless decision. But for this celebrity, what matters most is he continue what he's doing in his life. He is finding satisfaction with it so be it.
While there are some decisions that we can say are mistaken no matter what, when evaluating most decisions we have to take into account the circumstances that surround it.
A person which refused millions of dollars in order to keep a specific lifestyle, and that did not had such an amount on their bank accounts is without a doubt making a mistake, but if another person took the same decision, but that amount of money only represents a fraction of their wealth, then we cannot really say they took a bad decision.