And that staff has to be overseen and supervised, making the wife an unpaid, but high level executive assistant. So pretenting that she isn't contributing because they have paid staff is unpersuasive. She also has maintained his desire for strict privacy and decorum both before and after marriage, never speaking "off the record" or behaving ungraciously in public. And you know the tabbies were watching.
All of that was a huge contribution to "the marriage". Your belief that she hasn't earned her share is pathetically mistaken as to what a woman brings to a high profile marriage. It takes a lot of grit, it's a high pressure position with not a lot of downtime and requires superior management skills.
Even were it true that she functioned as some sort of "high level executive assistant" for him (neither of us knows whether that is true or not, unless you happen to be a close friend of theirs), I simply would not put the value of her "share" at $250 million. As mentioned, I would put her share at say, $30-40 million, taking into account the public humiliation he has imposed on her.
Had she taught him how to play golf, had she won half the tournaments, had it really made much of a difference whether he was a bachelor or married in obtaining endorsements (I don't think it does), I would feel she was entitled to a bigger share.