It's a sad fact that most truly beautiful women are looking to cash in on that beauty and a big dick alone ain't enough if you don't have deep pockets. Why work if you can be a trophy. It's a transaction that is as old as time and as accepted as marriage itself.
Is a big dick really much to write home about? Especially knowing there are rampant supplies of dildos everywhere?
First priority for any decent woman is just seeing a man that can provide for a family. Dick is 2nd place to that. It's not a matter of being a "trophy wife" for the majority - only the select few Kardashian types who fight over the 0.1% rich fucks.
It is odd though how everyone feels the need to marry within their class. No matter how much people think rock stars, sports stars, or movie stars are good people - you will rarely see any of them marry someone that works a standard 9-5 job like a teacher.