Recently, I joined a game of 5e with some strangers I contacted over the internet. Everybody met up beforehand, got to know each other, and everything was coming along great. We have a character creation session, everyone's mostly on the same page about what we want out of a game: some dungeon crawling, some social stuff, some combat, no evil PCs, etc. Everybody has the classes they want, stats are rolled, and we're ready to start.
Session 1 begins, and the party's mission is to map out the wild frontier on a poorly-known continent that's in the process of being settled. Having arrived, the party is soon approached by a bloodied villager calling for help. They describe their village being razed to the ground by overwhelming amounts monsters, and how they are in desperate need of aide. Before I have a chance to respond, one of the other party members says:
"What's in it for us?"
While this is an innocent question by itself, I try to argue in-character how we might make connections, gather information, procure clean food and water, get a monetary reward, etc. However, by this point the rest of the party is in agreement that there is no point in helping these people out, especially when the odds are supposedly stacked against us from the number of monsters described. Due to majority rule, we end up moving along. A few minutes later, we hear word from another traveler about a nearby old and musty crypt radiating with dark energies. Again the question comes up, "What's in it for us?", and again we move along despite my protests. The party will fight when fighting is necessary, and converse when conversation is necessary, but that's about it.
I understand that there are different play styles out there, and I don't expect players to have to bite every hook the DM sets for them, but I set time out of my day to collaborate with people and make stories and go on adventures, not move square-by-square on a grid and roll to map it. I felt like my fellow players and I had good chemistry before the first session, and the DM has been excellent so far, so I would hate to just call this game a total loss. But, the way things have been going, I'm not sure I'm terribly interested in continuing.
What are some ways I can approach the DM or the other players about how we all play without trying to force my own ideals on them?