All previous bands I've been in there's always been someone who, although not really a band leader, will push what they want onto the list - not always a success.
I'm currently starting with a new band and was quite surprised when I rejected about 6 songs on the list and they all went "Ok, that's fine"
I think everyone has to be happy with what they're being asked to play. That doesn't necessarily mean they have to actually have had to have been a fan of the song but see that it works for the band. There's stuff I play that I wouldn't ever listen to at home but will play in a band because it clearly works.