Jim Stroup at Managing Leadership goes after the "leadership is inherently positive" argument.
I suggest to clients that they think of leadership responsibilities and how well individuals, regardless of title, fulfill those responsibilities. It can be especially dangerous to imply that some jobs have no leadership responsibilities whatsoever and to treat leadership as a caste.
The discussion reminds me of how the terms "quality" and environment" - which once were neutral - are now frequently associated with the positive.
"They did a real quality job."
"Oh. Was it good or poor quality?"