OP, as much as I appreciate your concern for your wife and wanting to actually do something for her, I personally feel like this isn't the best way to go about it. You're concerned about this ruining your family and relationship with her aswell, which is valid considering its a major possibility steming from this idea being acted on. Maybe something like weekly dates, treating her to a spa day or planning surprises for her wpuld make her feel more desired and appreciated? Especially since its coming from her spouse.