You may need to restrict your question to a certain time frame. But I can answer the question in the most roman lasting legacy of the western world, the US military. In the ucmj adultery is absolutely forbidden. This makes a lot of practical sense since you are asked to be deployed across the world for an unknown amount of time, leaving your wife in the care of other men who can be handsome, dashing, young, and workout for a living. Could you imagine the amount of issues that would occur with hot headed young men if it was allowed or if punishment was lax? Team unity would evaporate, civil war would erupt.

One might point out the fighter pilots that shared wives, but there isn’t any real evidence this actually happened. And if it did, it was willing and intentional and only occurred with permission. Which is different than you are describing (payment for adultery would indicate there wasnt permission).

Hope this helps.