Most of them don't do shit. They get what they deserve. Bassists who actually do shit get love, unless the rest of the band turns them down so they can't be heard. Honestly, whenever I see a review it seems like if the reviewer can hear bass they feel obligated to throw in a couple lines fellating the bassist. Imo inaudible-bass-following-the-guitar-line works best in most cases.
The solution is to just learn to sing while you play bass. Bassist/vocalists get mad love (Lemmy, Tom Angelripper, guy from Venom, Damnagoras on Heathenreel, Glenn Benton, etc). Man up.