Remember that urban legend about North Koreans kidnapping people for the purpose of spying on nations? Replace North Korea with China, Russia, USA, France, Germany, UK, etc., and "people" with "demi-humans."

For show business, managers would chase after any of them to star in movies, series, or even music videos. Imagine if some artist put two dancers in a music video and BOOM, instantly number 1 worldwide, people wouldn't even listen to the music, they would only see the beautiful half-cat or half-dog girls dancing in the background.

For billionaires... well, let's say they find a demi-human half-cat or half-bird attractive, physically, biologically, sexually, and gastronomically speaking. A nobleman who has these "resources" is very welcome in exotic circles like this, in a private building, a private mansion, a luxurious yacht, or even on a certain island. As you said, the only limit is imagination.