Gibson netted, according to reports, nearly $700 million from The Passion.
His "career" is managing his money; he doesn't have to do any more movies, though he directs more now than acts in them.
OK, I'll revise that so people stop writing to me....TO ME, his career is over....added to the list of people I will not give money to anymore. OK? :)
In addition, your career has nothing to do with how much money you have.
That doesn't sound right. From what I've seen (and I admit, I haven't followed the ticket sales very closely) the Passion grossed close to $612 million world wide. So it would seem a bit out of synch that Gibson could have netted $700 million from that movie.
Still, whatever he netted, it was likely a pretty large sum- more than enough to keep his career occupied, as you suggested.