Years ago I helped an elder renovate his basement so he could rent it out. We worked pretty steady for over 2 months, every spare minute we had. Some time later I had to move and asked the same elder if he could give me a hand that Sat. A.M. His response was to tell me he had to take the group. The funny thing was when we were working on his basement he missed pretty well every Sat. in service.
This isn't the reason I left but it sure hurt.
I noticed over time that this attitude shows up often. I guess Jesus saw it too when he talked about corban and everyone begging off. Maybe it's human nature but it sure isn't any better in the J-dubs.