That is rape in any language and has nothing to do with dating.
For one thing, most people do not want their relationship to be the equivalent of gossip tabloid fodder among their own social circles. If the man is a billionaire, it comes with the territory.
A date I recently went on showed the woman to be intelligent, sweet, accomplished, and attractive. In fact, the entire point of becoming a billionaire is for men to be unbound by the rules of everyday life that constrain the rest of us.
We both suspected the age difference might be significant, but avoided the topic for as long as possible. Former Italian Prime Minister Silvio Berlusconi threw “bunga bunga” parties while in office.
Having said that, a guy at 41 squiring a woman of 23 is far more controversial than a 71-year-old man dating a 53-year-old woman. There is an unofficial rule that exists, even though nobody seems to know where it originated. A 40-year-old should stick with someone at least 27.