When I equip Gluttony, my skill descripts do not change. The Life Force % gained from using the Staff #1 and Scepter # 3 skills remain the same percent- why is that?

Same situation with the Bloodthirst trait. It says it makes siphoning health 50% more effective. I equip it and my life siphoning remains the same per pulse with the dagger #2 skill.

What am I missing here?

Thanks,
Lori