I think all those are good ideas. The most important thing is have lots of money.
My Niece is about as pretty as a girl can get. She was runner up in a Southern State’s Miss America pageant. When she was in high school she began dating a guy whose family was and is extremely wealthy.
I met him and he is a nice guy but not particularly handsome. I did think his Father was a great guy tho. Extremely rich yet totally unpretentious.
Well they are now married, have a good marriage and three children,. Live pretty much in luxury.
If the same guy had been just an ordinary joe, I suspect she would have never given him a second look. On the other hand if she had not been beautiful, I doubt he would even have noticed her.
You have just described your niece and her husband as both being very shallow people. I hope you are wrong.
You tell that story as though it is a good thing!