It offers an insight into your character, how you behave, react and treat others. The person behind the bass.
It allows others to judge you and your bass playing technique, your style, your levels of aggression, your depth of tone, your use of phrasing and of course how you stand on stage.
And of course i am talking TOSH.
As long as the bass player is competent and doing a good job. That's really all i'm interested in from any musician. 👍