WTF are you reading that's exactly what it says? A 5/10 loyal virgin wife or the money. It's a hypothetical of course we all know it's not realistic. Although I have seen, very rarely, some cases of sub-5 men who lucked out and got married to their girlfriend from high school (usually looksmatched) and have yet to get divorced. In older generations it was much more common for sub-5 men to have lasting marriages.
That's why I say it's priceless. No amount of money can buy a loyal wife who can pairbond with oneself. A man either finds such a woman in his youth or must deal with roasties who have lost the ability to pairbond for the rest of his life, after that all the money in the world is just a cope.
Furthermore, having a successful marriage is itself the best way to save money. Two separate people must pay for their own: mortgage/rent, car payment, utility bills, groceries, insurance, cell phone plan, etc. while a married couple can split or significantly reduce almost all of these costs. Over a lifetime it would definitely save well over a million dollars.