Do most white people make financial profits from marriage?

Most white people in North America have had financial investments passed down to them from their ancestors that go back to the days of slavery. Because of that, most white people are capable of getting financial profits from their inner circles. If you think of it, marriage is a business and it costs money. If there is no money the marriage cannot be sustained.

So do most or some white people make profits off their marriage, even if the couples have to go out and work?