The wifey has her masters in ed & spec ed; enjoys her career, tells me she'd do it all over again, thanks me for pushing her into spec ed, and almost doubles the $$$ the study claims. I enjoy her summers off too. Other relatives with engineering degrees have suffered periods of unemployment during their careers, moved all over the country, ended up working away from their family leading to breakups of their marriage; on and on.
Money is important, but it doesn't lead to happiness in life.