I don't think this is all about money. On reflection I think a lot of this depends on yes, money, but also, what you were used to as a child and the energy levels in your childhood home, and also your current family dynamics.
I am "low energy" I think compared to my friends, and although my parents both worked hard, they were quite perfectionist about things at home, but didn't have much energy for anything else. They weren't very spontaneous and that is the rhythm and pace of life that I was used to, even though I very much took it up a notch in my 20s, 30s and 40s, I have now reverted back a bit!
Money helps of course if you can afford cleaners, baby-sitters, sports coaching for the DC or whatever, leaving time and energy for other things. But in my limited experience, those things also create a bit of work too!
And it also depends upon how supportive your partner is, or not, how much they contribute to daily life, how independent and dynamic they are and whether you gel together as a couple or pull together or against one another. And your physical and mental energy plays a part in all of this too and whether your dc have SN or not of course.