The key here is wifey has a good job. If you’re the sole earner then this is a different scenario.
But with wife working a good job I’d stay SWA and drive to work.
I’d argue if he wanted to he could make more over his career at SWA anyway. Those dudes can hustle if they want. Or relax and drive to work and fly 11-12 days a month.
This really should be an easy choice.