i don’t think this was about sex as much as the power to do what he wanted, when he wanted, to whom he wanted. Clearly he doesn’t want to have to ask/hear NO.Otherwise you are correct, he coulda got a hooker. Shoulda got a hooker! Now he is in a world of shit.
There were kids grew up watching his shows, loving him like only a TV Dad is loved, wanting to emulate him. If he did do this, he is seriously mental. Throwing away a reputation that it took a lifetime to build is nuts.
Predators like Cosby like the thrill of the hunt, the capture, and the rapacious ending.