There has been many Bethel staff purges over the decades, and so with their international army of lawyers, I'm sure that the Organization is covered against this kind of litigation.
I'm not saying that there might have been special cases where a very few exBethelites received a termination payment of some kind (like the case of our mysterious Brother Tony) however its highly unlikely that when some poor bastard from the printery get kicked out, that he'll get much more than pat on the back and a cardboard box for his belongings.