If you are a bass player and you don’t sing or help with songwriting, then you need to shut up & play bass. If you want to handle management, booking duties, etc, that’s fine– but since you don’t write songs, you are NOT qualified to be the bandleader and therefore you are NOT allowed to dictate every creative decision by leveraging your position of advantage. That fucks up a band every time. There are a million guitar players out there & a zillion singers too, with a more limited pool of good drummers, but quality bass players are very hard to find. Many of the best bassists let this instrumental scarcity go to their heads, by taking the attitude that if they don’t get their way, they’ll simply take their bass & go home– leaving the band stranded. One of the biggest problems in rock music today is there aren’t enough bassists who are team players.
I’ve learned over the years that many of the top bassists do corporate gigs for a living, including tribute acts & such that play six nights a week and twice on Sundays. Any left-handed bassist is wanted for Beatles tribute bands, etc. That’s where the steady money is, as compared to forming a band and trying to be something new. My biggest criticism of professional bass players is that they are too rigid as a rule, which limits them. You can’t be a great band without a solid bass player, and you can’t be a serious bassist if you don’t work well with others.