All marriages are/were to varying extents. I would go so far as to say that being able to "pencil out as a sensible business transaction" is a key element of m

All marriages are/were to varying extents. I would go so far as to say that being able to "pencil out as a sensible business transaction" is a key element of most/all longstanding marriages. Being the 40yo guy marrying the 20yo girl is like being the 40yo guy daily driving a Ferrari. Sure there are some pretty big downsides in the practicality department but you're rich enough to paper that over (this sentence is specifically crafted to apply to both parties).