In the pre donation days paying special pioneers full time to sell publications made sense, their investment would be returned to them tenfold but no such provisions were ever made for elders. Instead their idea was to have a number of elders to share the load.
The org says not to place work as a high priority and God will provide but where are they in this picture? Elders need to support their family and if the org carried out God's work by providing to the elders they might be more successful in retaining them.