Marriage is between a man and a woman. Forget the government piece of paper. The piece of paper simply invites government into your private lives. Make your own contract if you think you need it.
Forgot to mention that gays and lesbians can marry.
Well, I'm not married, but I believe that everything turned business, marriage turned business.
People want security, well-being and love. if someone has financial resources becomes an excellent candidate, but that does not mean that people just have financial interest ... people just want financial stability, security and love.
I can agree with you that people wants financial stability, security and love, bit this is not everything.
Most people, specially woman, wants to become parents to, fathers and mothers.
Without children, many people don't see purpose in their lives.
you can be very reach in your life, have a lot money but eventually you will become old and die.
So, many people feel that there is no meaning to just spend their everyday life working and collecting money if there is no children, someone who can inherit their wealth and love, and continue their lineage.
All this things you can't replace with money or buy and can't call business transaction.
It's much more important and connected to hearth and love, not money or wallet.