Usually when a woman ends up giving maintenance to man, it means that her advocate has a single-digit-IQ, was most likely bribed or went drunk to the hearing or the Judge has a daughter who was financially abused by her husband. That said, the law does allow for wife to pay maintenance to husband but such cases are rare. For example, if the husband is hospitalized or disabled recently and cannot work while the wife is qualified and is working.
If wife is earning 1/4th the husband's salaries, unless you (wife) have many kids, I don't think you need to worry. RELAX... Your salary is safe.