I never claimed that helpful members were "jerks". You, however, claimed that "They won't be sharing info no matter the case", (which implicitly hints at being "jerks" and making that your assumption that "They won't be sharing info no matter the case").
You claimed that competitive members wouldn't share info with new members if a leaderboard was in place, thus making them jerks.
The W.A.R. consolidates member offer stats and does let that individual member know where their own earnings stand. Why would anyone be concerned about the earnings of others? Such concern does not affect one's own earnings since these are a matter of self-motivation, not self-aggrandizing.
If there is nothing to compare it to, there are no standings. Motivations vary from one personality to the next. Every effort should be made to motivate as many as possible. Those that do not share an interest need not participate and go about their own self motivation.
It remains possible to 'compete against one's previous offer stats' as a way to increase one's earnings. FC members are not technically competing against other members unless participating in specifically-competitive promotions. Since such promotions already exist, there is no particular extra incentive in a leader board competition. If a 'leader board bonus' is being suggested, FC would determine what, (if any), bonus incentives would be offered.
Competing against one's self gets boring rather quickly. That is where longevity of the activity requires a new dimension.
Hence, the true motive stands revealed. You're apparently looking at this from the perspective of someone who expects to lead in such a leader board but, have not thought any other variables through. Before asking, (if you were going to), consider what those might be.
I don't know how you come to that conclusion when you were the one to mention it. I am on deployment for much of the year so I doubt I would lead it.