Watchful has, right now, a top level grind for Scholar of the Correspondence. To reach the cap you need 300 Watchful, a truly herculean feat requiring notability, luck, and/or patience.
Are there any similar challenges planned (or already existing) for the other stats? Is that what the Heist experimental content, and the locked-off Glassman content might be leading to? As long the grind has been for the Ubergoat has been, it’s fun because it feels entirely optional and (mildly) impossible.