For all his money he stayed in the family home until the divorce went through, when it was HE who wanted the marriage to end?
OP, how exactly was she supposed to work if he was in the big "highly stressful job"?
Was he available for childcare on sick days, pick ups and drop offs?
He wanted her to work AND do it all... while he did his big important job?
It takes a partner who shares the load for two big careers in the home and is very, very rarely achieved.
Have you asked him how involved he was in the day to day details of his children's lives?
Or was he so busy in his big important job that everything else were details fulfilled by the house fairy?
Did he cook, do laundry, shop?
Did he offer?
Or did he expect it all to be done and now is pissed she didn't manage a big career at the same time?
In my experience one partner needs to take the reins if there are children.
I think you have such a self serving version of the truth.
His adult children supporting his wife could be very telling.
Perhaps they see very clearly what happened and are seriously unimpressed with him and how HE has behaved.
I would take what you have been told with a pinch of salt.