Yeah, the problem sounds like everyone wants to do A while the bard player wants to do B. You should try to handle this outside of the game by figuring out if there's a way to mesh A and B so that everyone can have fun.
We had a great role player playing with us once that had absolutely no combat ability, which actually was the players whole M.O. from the beginning. (In fact, at one point Jason had to figure the guy's gained stats from leveling and XP.) What Ross did that made the game so worthwhile was give us a number of scenarios that could be resolved either through brute force or through some form of social interaction.
Two moments stand out the most about that game and the RP heavy character. The first is when he bought a no-armed orc from a group of slave traders, which was great amusement for all of us. The bad puns were toppled by Ross mistakenly saying, "Cassius takes an attack of opportunity because he is
unarmed." In another moment, the RP heavy character befriended an orphan who attempted to kill him on the street and made the orphan his protoge. He and the orphan then tricked a rich man into giving up a lot of money to him by pretending to be a high priest of a made up church. The RP character's high social skills allowed him then to more than successfully interact with people in ways the combat junkies couldn't.
Of course, my character who was designed for both RP and combat hated the RP heavy character. But it was more because my character and the RP character had different ethical stances. It was a game that didn't feature alignments, but he played his character mostly on the side of evil, while mine was played mostly on the side of good. At one point, my character actually
gave up his soul in order to advance our party through a quest, which made for an interesting scenario:
Ross: What do you do?
(All the other PCs huddle talking)
Me: I'll give up my soul.
(All the other PCs ignore this.)
Ross: Really?
Me: Yes.
Spokesman for the other PCs: OK, here's the plan...
Ross: It doesn't matter anymore, the soulless wander accepts your gift and tells you the secret on how to move through the dungeon.