They are apples and oranges. The orgasm gap occurs in the context of couples who have already consented to having sex with each other, and the expectation of mutual satisfaction is reasonable. Yet mutual satisfaction is infrequent in heterosexual couples, which defies reasonable expectations.
Men or women who don’t have sex frequently or at all are not comparable because there is no reasonable expectation of having sex if you are single and do not ALREADY HAVE a consenting partner.
It’s up to every man or woman to figure out how to be an attractive partner FIRST. And if you can’t find a partner, and you are just too high strung to live with celibacy, you can hire a sex worker. They’ve existed forever for this very reason—which has also existed forever.
Celibacy is not a punishment or a hardship because sex was never ever guaranteed to any human for any reason. While companionship, friendship and affection are human needs, sex is NOT. And loneliness is totally up to the individual. Even a fat, ugly, celibate monk can have many friends and be beloved by his community, and never have a lonely day.