Some good suggestions for plot devices to corruption. I too remember it fondly in the beginning which is why I dumped cash into it the moment I saw the introduction and graphics (before Jamal even showed up).
There's good potential for unseen NTR plot devices due to a cripple MC who was once a chad being so rare. I too expected a clever antagonist who acts as a nice boy before raping and defiling the women of the household. When I play NTR, I cheer for the antagonist. The smarter, sicker, and sadistic the antagonist is, the better. Similarly the more badass the FMC is, the more of a spunky, smart-ass, prim and proper lady she is, the more thirsty I get and wanting to utterly destroy her.
The wife in this game resembles nothing close to how real women react. Imagine. Some Black fuckboy comes into my house who I'm interviewing to take care of the person I love the most in the world, has access to my precious daughters, disrespects and sexually harasses me from less than 1 hour of meeting? There's zero possibility I'm not going to feel revulsion and call the cops on his Black ass for groping me in my home. I'm the wife of a successful billionaire with my own professional success. I'm a queen in this Kingdom that's my home. I'm the protector of my husband and daughter. Not some cheap whore that some Black boy Jamal feel up.
Like you said, either she's a cheating whore that gets her pussy wet from seeing Black men or she has IQ 2 standard deviations below the average. Neither of which makes for sexy NTR targets and an engaging story.
Just poor writing from an author with zero understanding of the standard human social behaviors.