This isn't some revolutionary idea
There is such a small market for this service that it's basically non-existent especially if you are talking about princesses and women with money.
You think that women with money and power and influence are sitting at home crying because they can't get a dyck when they want it?
They aren't waiting for you to come save them, they are already getting it how they want it.
The reason that there are instathots making a killing is because we men overvalue sex. We walk into walls if we see an average chick with cleavage. A random woman can go up to 8/10 random men and ask "would you like to have sex?" and the response would be yes. If the average man did that to the average woman the overwhelming response would be no. It's like you're standing outside of a buffet trying to sell chips.
(this isn't to say women don't like/need sex
either)
If you wanted to make money on this though, it wouldn't be targeting women with a ton of money. It would be targeting women with a moderate amount of money, more than likely from the US, who go on international trips. I could see there being a large market where someone did like a Fyre Festival for women where they could have all of the sex they wanted with random dudes on some island in the bahamas or something... but be prepared to smash a lot of undesirable chicks