There is no question that this is the case. This video a guy articulates this, be warned I suspect that his conservative opinions and religiousness may rub some HN users the wrong way. However I think his point is persuasive and well made nevertheless.
The graph-theoretic algorithms necessary to puzzle out polyamorous marriage contracts are going to be somewhat irritating to explain to the legal folks...
https://www.youtube.com/watch?v=Zcs1K7Gi9Pg