On a sidenote, it looks like the HN policy of preserving original headlines is completely out the window.
(Submitted title was "Tiffany Co. CEO on environmental impact of jewelry". Since the original title isn't misleading or linkbait, the guideline would say not to change it, so we changed it back.)
The only solution that I can see that avoids "priveleges" is to actually give mod priveleges that allow a cadre of users to give a [sub-]title iff they respect neutrality of the title.
Going this far seems a bit OTT though whilst there do seem to be less than perfect options that are better than the current position.