Gosh, it’s odd that the schools I know are so different from Deerfield. At them no teacher could ever say “don’t bother me on weekends.” That would be a pretty surefire way to lose their job.
I agree, the time demands are enormous. But historically they have always included teaching, coaching, and dorm duty. So there’s no change there. Only pandemic precautions have added more work. And, there’s a move away from the traditional “triple threat” model of boarding school teachers. Now, there’s more emphasis on coaching, with real, and good, coaches, not the Latin teacher who’s taught himself a bit about soccer.
BS compensation and benefits are competitive.