Even if I assume you have stats to back that up, don't you think there's an itsy bitsy chance you're operating with a huge correlation / causation fallacy here?

Even if I assume you have stats to back that up, don't you think there's an itsy bitsy chance you're operating with a huge correlation / causation fallacy here? Does getting married automatically make you more wealthy, or are people who are already wealthy more likely to get married? It seems almost obvious that if there is any causation, it's in the latter direction.