Your knowledge of the material matters.
If you know more about all the songs than the drummer who came in to the audition before you who do you think will get the gig?
Being prepared and ready to go is the key to getting the paying job.
If you have songs charted and can play them perfectly every time, you will get the gig. Time is very important to working bands. Gigs are already scheduled and they don’t have the time to rehearse all the songs, so you have to be able to learn them on your own.
Show them you have that skill and learn to chart and start working.