Well, I understand your doubts and questions, since, clearly, such practices (gay for pay) are not only not mainstream, but above all hidden for considered shameful by most people.
But like it or not, it's one of the MAIN sources of income for many top level guys (not only pro's but good amateurs you've never even heard of), and not solely in the middle east... plenty of sugar daddy's in the US and to a lesser extent in Western Europe. That's a fact and you'd be surprised how many big names in the sport actually benefited from their protector's support, that either helped launch their career or just carry on with their expensive lifestyle.
That being said, to answer precisely your question, I have no clue about Brandon, but otherwise yes; I know personally guys that have been approched or contacted themselves rich Kuwaiti (or millionaires from other countries nearby), and actually a good dozen (many many manu more in the US btw... but it's less sensational
).
I won't name anyone so you can say I'm just bullshiting here, but really I could care less... sometimes, it's better to ignore reality and remain with the idea that no, such things don't/can't exist.