Eventually you reach a point in Diablo 4 where, instead of grinding for levels, you're grinding for gear. Unique items give unique bonuses for your class and they're essential as you climb toward the RPG's level 100 cap.
Instead of blindly sweeping through dungeons and gambling with Murmuring Obols for gear, you can actually target specific item types with Diablo 4's monster family system (a truly unfortunate name). Necromancers desperate for a scythe, for example, can seek out Drowned enemies, or if you just need a Unique helm to complete your build, you can focus on fighting Cultists.
