many years ago I heard an illustration...
the Org is like a train moving ahead continuously, to keep up with Jeh's Org we need to run with it, if we stand still the train will keep going and eventually we are no where near Jeh's org.
this has always been the general consensus but recently there is a new twist to this which uses it as justification for shunning
I believe eventually inactivity for a year with a subsequent refusal to accept a study to "come back" will result in an announcement of "so-and-so is no longer one of JW's"
and we all know what that equates too....