Sharing absolutely I agree, but not being cucked. Theres nothing alpha about watching a dude rail your wife/gf will you wank in the corner. Lmao!
Seriously. Nope.
I think another things that people don't get is that for most people this is also just roleplaying/fantasy/fun. While it's not universal, the stereotype of a high powered CEO who goes to see a dominatrix on the weekends for a break from being in charge is a stereotype for a reason.
Even if a cuck's in a submissive role from the time the bull walks in the door to the time he leaves, it really doesn't have any relationship to whether he's an "alpha" outside of the bedroom.
It also doesn't even mean that he sees himself as submissive to anyone besides his wife during the scene. If you look at a lot of the fantasies thrown around on this site, a core element of many of them is that there's nothing more humiliating or disgusting than watching your wife fuck a black man.
If you think that when he wipes your cum off his chin, gets dressed, drives his wife back to their gated suburban home, and shows up to a board meeting on Monday morning that he sees himself as in any way inferior to the "bull" they picked up over the weekend, you also don't understand how people in positions of power entertain themselves. CEOs don't share their wives with the (also white) chairman of the board because that idea is actually threatening.