Take a look at the OP's other threads. They make for interesting reading, to say the least, but this latest thread is a continuation of a perennial obsession approached from different directions.
Oh, good grief, we are back to that area where money, power, lack of time, excessive entitlement, and encounters with other genders intersect. Actually, we are back to the OP's obsession with money, and wealth.
If time is too costly an expenditure, then, I think we can forget about anything meaningful That doesn't just mean in the context of relationships, but it often includes other intangibles, those things such as affection, liking, respect.
Absent these, instead, what we have is a commercial transaction. Sex for money. What is the problem with seeing this as an upmarket version of prostitution?
However, I repeat that if someone seeks to embark upon - if relationship is such an ugly word - what can we call it instead - transactional encounters? - which involve sexual relations without the time, trouble, and context that might give it deeper meaning, - and perhaps some degree of meaningful duration - we are reduced to something not a million miles away from a commercial sexual exchange, a transaction - a transaction of sex for money - or of money for sex, where both partners may come to despise or loathe what they can come to view as the power imbalance; this is a trade that is as old as recorded history.
But don't confuse this with love, or try to delude yourself that this is what you have here, as your original post seems to try to assume. It is nothing of the sort.