I never understand why this is so difficult for people. In many cases, yes, spousal maintenance is not appropriate or necessary. But in some cases, it absolutel yis.
if through the marriage one partner specificaly was a SAHP and/or was limited career wise in order to support the other, facilitating a high income, then either the assets need to be split to recognise this - eg the SAHP gets a much higher percentage of the assets because the working parent has the ability to continue to accumlate new assets - or it might be that spousal maintenance needs to be paid.
I also think, frankly, that in the case of very high earners, it's also probably perfectly valid for the exspouse to expect to be able to maintain a certain lifestyle while they have children because it's not just them who benefit, it's the DC too. Huge disparity between the home of their mother vs their father is not terribly helpful and I've seen this in real life.
I also think we have to be realistic, quite a few marriages where one is extremely welathy (and/or high profile) have an element of a transaction. "I will be the trophy wife, look good, entertain, look after the children, facilitate your life etc, but in exchange, i will be looked after" and then when it all falls apart, well, the transactional version was still there. Although I think a large pay out is a better solution than long term spousal maintenance myself.
Where I think it IS ridiculous is in the situation where my perfectly normal middle class friend and his wife split - they had no children and had been married for just 10 years. He had earned much more than her and had accomodated her working part time and taking time off to explore new (very badly paid) career options. He had no problem splitting all their assets 50/50 even though he had "earned" the money, but he did take it badly when she wanted him to pay spousal support in addition for five years.