If this is not something that is set within the template file (it might already be -- I'm not sure), it should be. Just as much as the OP wants leaders off by default, I'm sure there are others who want leaders on by default.
Thanks for taking the time to submit your idea. Unfortunately, this idea did not get the support of the community over the last 6 months and as such we will not be pursuing it at this time. Please feel free to rework (titles and clear descriptions are really important) and resubmit this one down the road.