The weapon you're holding decides some weapon skills' textbox. For example holding a 2-handed sword will say All-In scales with strength, a spear will say it scales with finesse, and a staff will say it scales with intelligence.
A ranger's weapons and abilities scales with finesse, because both the bow and crossbow scale with finesse; most ranger abilities can thus only scale with finesse because you can't shoot arrows from a wand.
Hoped this helps. You're not doing anything wrong.