Simple. For the reason that we can review our equipment or monster ability in scale.
For example damage per hit, numbers of hit(in case of shotgun or some monster ability), rate of fire/attack, heal amount, max health pool for monsters. You will figure out others.
Oh and more detailed of some specific ability such as - Hank’s shield projector and tech sgt.Hank’s shield charger which work differently.
It took some people more than 2 rounds of defeat to know how it works properly, sometimes me is included.
This will help players determine their future plan of both buying a new charactor and in-game strategy.
More satisfied charactor detail. More customer interest. Comes more buying.
Profit me, profit you.