There's no hard and fast rule of thumb that they follow on this issue.
Some elder bodies are fairly well integrated and united, and elder's kids are judged less harshly and get more priveleges than others.
Other elder bodies are bitterly divided and full of rivalries and hatreds, and would sell each other out for 30 pieces of silver.
Just like any other human enterprise, there is infinite variation and it's dependent on the vagaries of human relationships and imperfections--this is why it's ridiculous to submit yourself to other imperfect humans in a religious context.