Stats are designed so that in theory any class can benefit from any of them. The most
obvious effects of Presence are on characters using Tease attacks and summoners, but the stat bonus Leadership grants applies to all your companions so it's great for them too (see
this comment by Savin for example) and anyone can benefit from the health boost that also comes with more points in Presence. Even a dedicated caster can benefit from points in Strength because one of the things that does is improve your base Spell Penetration, even a dedicated melee fighter gets something out of Spellpower because it boosts evasion/damage reduction for lust attacks etc.
Anyhow, my main Champ is a Presence-focused Warrior who generally handles party tank duty and her Presence stat is maxed out as a consequence. She's soulbound and uses the Valkyrie-exclusive powers to buff ally defense (Celestial Form scales off Presence and provides both a damage shield and a Holy damage boost) and also helps keep her Threat up with offensive moves (and the passive boost of Conqueror's Breastplate) which keep the enemy focused on her while Ryn keeps her healthy and the third party member (varying by the situation, though Hexblade Cait is my default) focuses on hitting things constantly. It's not the most optimal setup either in how I've distributed stats or in my equipment but I tend to play based more on roleplay hooks than gameplay mechanics and the only times I've had serious issues are on the kinds of fights that are supposed to be hard regardless.