From what I have seen of the public persona of Mark you would think there would be something there. The guy has carefully crafted deals up to this stage to ensure he keeps maximum control.
I'm joking, but there's a hint of truth here. I can't imagine any level of wealth at which suddenly having half (or twice) as much would make any difference to me at all. A factor of two either way really wouldn't change my life appreciably.
You sure about that? I think $40k down to $20k could be a pretty jarring transition, especially if you have established expenses like dependents or a mortgage.
If you don't think that this will happen, it does. In the US court systems, the woman pretty much has all of the power. If she cheats on you and has a baby with another guy, you most likely will end up paying child support.