Leaders have one job only - to make success possible for those who should depend on them.  Test any and all situations of leadership - good-bad, present-absent, on this one rule and I think you will agree.

So whatever else you think leaders ought to do is only relevant and useful if it causes the actions of leading (problem-solving for others) to work better and more frequently.

I do not see it in this article.  But then who really cares?  It was just a friendly comment.

I have no intention of reading comments by anyone on comments by anyone.  That is where the wheels fall off of comments sections.  State your idea and move on ignoring the trolls.